ogden air logistics center hill afb 82 ut propellant u … · anthony j. inverso, chief propellant...

AD-i28429 OGDEN AIR LOGISTICS CENTER HILL AFB UT PROPELLANTU IS ANALYSIS LAB E M DALABA AUG 82 NANPA-473(82)

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HEADQUARTERSOGDEN AIR LOGISTICS CENTER

UNITED STATES AIR FORCEHILL AIR FORCE BASE, UTAH 84056

PROPELLANTuSURVEILLANCE REPORT

ANB-3066 PROPELLANT

PROPELLANT ANALYSIS LABORATORY

DTICMANPA REPORT NR 473(82) ELECTELE IrS OCT 19 982l

.. AUGUST 1982

APPROVED FOR PUBLIC RELEASE, DISTRIBUTION UNLIMITED

2 92 I

MANPA REPORT NR 473(82)

PROPELLANT SURVEILLANCE REPORT

ANB-3066 PROPELLANT

Author

ELI ETa M DALABA, ChemistComponent & Combustion Test Unit

Engineering & Statistical Review By

qGLENN S. PORTER, Project Engineer DAN L. PETERSEN, MathematicianEngineering & Reliability Branch Data Analysis Unit

Recommended Approval By

LE SA BROWN, ChiefComponent & Combustion Test Unit

Approved By

ANTHONY J. INVERSO, ChiefPropellant Analysis Laboratory

August 1982

Directorate of MaintenanceOgden Air Logistics CenterUnited States Air Force

Hill Air Force Base, Utah 84056

ABSTRACT

This report contains test results from LGM-30 F and G, Stage II

and Stage III propellant. Data are shown in regression plots, special

types of plots such as those of gradient stress relaxation and constant

load testing. Occasionally, data are presented in tabular form.

The differences between polymers used in the propellant are given

in the analysis of covariance tables. Graphically, the differences

are most evident in gradient stress relaxation modulus.

ACCOsson For

NTIS GRA&IDTIC TABUnanaeunced 0J11stification

0Distribution/___Availability Cedes

Avail and/orDist spca

TABLE OF CONTENTS

Section

Abstract ii

List of Tables iv

List of Charts v

List of Figures vi

References xiii

Glossary of Terms and Abbreviations xv

I Introduction 1-1

II Test Program 2-1

III Statistical Analysis 3-1

IV Very Low Rate/Low Rate Tensile 4-1

V High Rate Tensile 5-1

VI Stress Relaxation and Strain Dilatation 6-1

VII Thermal Coefficient of Linear Expansion 7-1

VIII Case Liner Bonds 8-1

IX Hardness 9-1

Distribution List 10-1

DD 1473 10-2

LIST OF TABLES

Table Nr Page

4-1 Very Low Rat~e Tensile, Significance of Regression Slopes 4-2

4-2 Low Rate Tensile, Significance of Regression Slopes 4-2

4-3 Very Low Rate Tensile, Analysis of Covariance Comparison 4-3of Regressions

4-4 Low Rate Tensile, Analysis of Covariance Comparison of 4-25Regressions

5-1 High Rate Triaxial, Significance of Regression Slopes 5-2

5-2 High Rate Hydrostatic, Significance of Regression Slopes 5-2

5-3 High Rate Triaxial, Analysis of Covariance Comparison of 5-3Regressions

35-4 High Rate Hydrostatic, Analysis of Covariance Comparison 5-19of Regressions

6-1 Stress Relaxation, Significance of Regression Slopes 6-3

6-2 Strain Dilatation, Significance of Regression Slopes 6-3

6-3 Stress Relaxation, Analysis of Covariance Comparison of 6-4Regressions

6-4 Strain Dilatation, Analysis of Covariance Comparison of 6-36Regressions

7-1 TCLE, Significance of Regression Slopes 7-2

7-2 TCLE, Analysis of Covariance Comparison of Regressions 7-3

8-1 Stage II Constant Load Shear Regression Data, G Polymer 8-2

8- tg ICntn odSerRgeso aa oye -

8-2 Stage II Constant Load Searil Regression Data, P Polymer 8-3

8-3 Stage II Constant Load Tensile Regression Data, G Polymer 8-5

8-4 Stage III Constant Load Tesil Regression Data, P Polymer 8-6

8-6 Stage III Constant Load Tensile Regression Data, P Polymer 8-11

8-7 Constant Load Shear and Tensile Multiple Regression Data 8-22

8-8 Additional Stage II Liner Bond Test Data 8-29

8-9 Additional Stage III Liner Bond Test Data 8-30

LIST OF TABLES (cont)

Table Nr Page

8-10 Regression Analysis for Other Parameters 8-31

8-11 Analysis of Covariance Results 8-32

9-1 Hardness, Significance of Regression Slopes 9-2

9-2 Hardness, Analysis of Covariance Comparison of Regressions 9-3

LIST OF CHARTS

Chart Nr Page

1 5% Casebond Failure During Transportation and Handling 8-23

2 5% Casebond Failure During Booster Flight 8-24

3 5% Casebond Failure During Storage 8-25

4 50% Casebond Failure DXring Transportation and Handling 8-26

5 50% Casebond Failure During Booster Flight 8-27

6 50% Casebond Failure During Storage 8-28

L-IST OF FIGURES

Figure Nr Page

Data Plots, Very Low Rate Tensile

4-1 ANB 'G' Maximum Stress, Unlined Cartons 4-4

4-2 ANB 'G' Strain at Rupture, Unlined Cartons 4-5

4-3 ANB 'G' Modulus, Unlined Cartons 4-6

4-4 ANB 'P' Maximum Stress, Unlined Cartons 4-7

4-5 ANB 'P' Strain at Rupture, Unlined Cartons 4-8

4-6 ANB 'P' Modulus, Unlined Cartons L-9

4-7 ANT 'P' Maximum Stress, Unlined Cartons 4-10

4-8 ANT 'P' Strain at Rupture, Unlined Cartons 4-11

4-9 ANT 'P' Modulus, Unlined Cartons 4-12

4-10 ANB 'G' Maximum Stress, Lined Cartons 4-13

4-11 ANB 'G' Strain at Rupture, Lined Cartons 4-14

4-12 ANB 'G' Modulus, Lined Cartons 4-15

4-13 ANB 'P' Maximum Stress, Lined Cartons 4-16

4-14 ANB 'P' Strain at Rupture, Lined Cartons 4-17

4-15 ANB 'P' Modulus, Lived Cartons 4-18

4-16 ANT 'P' Maximum Sticss, Lined Cartons 4-19

4-17 ANT 'P' Strain at Rupture, Lined Cartons 4-20

4-18 ANT 'P' Modulus, Lined Cartons 4-21

4-19 ANB 'G' & 'P' Maximum Stress, Lined Cartons 4-22

4-20 ANB 'G' & 'P' Strain at Rupture, Lined Cartons 4-23

4-21 ANB 'G' & 'P' Modulus, Lined Cartons 4-24

Data Plots, Low Rate Tensile

LIST OF FIGURES (cont)

Figure Nr

4-27 ANB 'P' Modulus, Unlined Cartons 4-31

4-28 ANT 'P' Maximum Stress, Unlined Cartons 4-32

4-29 ANT 'P' Strain at Rupture, Unlined Cartons 4-33

4-30 ANT 'P' Modilus, Unlined Cartons 4-34

4-32 AJ1B 'G" Strain at Rupture, Lined Cartons 4-36

4-35 ANB 'P' Strain at Rupture, Lined Cartons 4-39

4-36 ANB 'P' Modulus, Lined Cartons 4-40

4-37 ANT 'P' Maximum Stress, Lined Cartons 4-41

4-38 ANT 'F' Strain at Rupture, Lined Cartons 4-42

Data Plots, High Rate Triaxial Tensile

5-2 ANB 'G; Strain at Rupture, Unlined Cartons 5-5V

5-3 ANB 'G' Modulud, Unlined Cartons 5-6

5-5 ANB 'P' Strain at Rupture, Unlined Cartons 5-8U

5-7 ANT Maximum Stress, Unlined Cartons 5-10

5-8 ANT Strain at Rupture, Unlined Cartons 5-11U

5-9 ANT Modulus, Unlined Cartons 5-12

Figure Nr Page

5-13 ANT 'P' Maximum Stre&s, Lined Cartons 5-16

5-15 ANT 'Pt Modulus, Lined Cartons 5-18

Data Plots, High Rate Hydrostatic Tensile, 600 psi

5-22 ANT Maximum Stress, Unlined Cartons 5-26

5-23 ANT Strain at Rupture, Unlined Cartons 5-27

5-24 ANT Modulus, Lined Cartons 5-28

5-30 ANB 'P' Modulus, Lined Cartons 5-34

5-31 ANT 'P' Maximum Stress, Lined Cartons 5-35

5-34 ANB 'G' & 'P' Strain at Rupture, Lined Cartons 5-38

Figure Nr Page

5-35 ANB 'P' & ANT 'P' Strain at Rupture, Lined Cartons 5-39

5-36 ANB 'G' & ANT 'P' Strain at Rupture, Lined Cartons 5-40

Data Plots, Stress Relaxation Modulus (Polymer)

6-1 ANB 'G' Unlined Cartons, 10 sec, 1% Strain 6-5

6-3 ANB 'P' Unlined Cartons, 10 sec, 1% Strain 6-7

6-4 ANB 'P' Unlined Cartons, 1000 sec, 1% Strain 6-8

6-5 ANT 'P' Unlined Cartons, 10 sec, 1% Strain 6-9

6-7 ANB 'G' Lined Cartons, 10 sec, 1% Strain 6-11

6-8 ANB 'G' Lined Cartons, 1000 sec, 1% Strain 6-12

6-9 ANB 'P' Lined Cartons, 10 sec, 1% Strain 6-13

6-11 ANT 'P' Lined Cartons, 10 sec, 1% Strain 6-15

6-15 ANB 'P' Unlined Cartons, 10 sec, 3% Strain 6-196-16 ANB 'P' Unlined Cartons, 1000 sec, 3% Strain 6-20

6-19 ANB 'G' Unlined Cartons, 100 se, 3% Strain 6-23

6-22 ANB 'P' Lined Cartons, 1000 see, 3% Strain 6-26

Figure Nr Page

6-25 ANB 'G' & ANT 'P' Unlined Cartons, 1000 sec, 1% Strain 6-29

6-26 ANB 'P' & ANB 'G' Gradient Stress Relaxation, 6-303% Strain, 6 sec

6-27 ANB 'P'& ANB 'G' Gradient Stress Relaxation, 6-313% Strain, 60 sec

6-28 ANB 'P' & ANB 'G' Gradient Stress Relaxation, 6-323% Strain, 100 sec

6-29 ANB 'r' & ANT 'P' Gradient Stress Relaxation, 6 -33% Strain, 6 sec

6-30 ANB 'P' & ANT 'P' Gradient Stress Relaxation* 3% Strain, 60 sec

6-31 ANB 'P' & ANT 'P' Gradient Stress Relaxation3% Strain, 100 sec

Data Plots, Strain Dilatation, Poisson's Ratio

6-32 ANB 'G' Unlined Cartons, 15% Strain 6-37

6-33 AND 'P' Unlined Cartons, 15% Strain 6-38

6-34 ANT Unlined Cartons, 15% Strain 6-39

6-35 ANB 'G' Lined Cartons, 15% Strain 6-40

6-36 ANB 'F' Lined Cartons, 15% Strain 6-41

6-37 ANT Lined Cartons, 15% Strain 6-42W

6-38 ANB 'G' Unlined Cartons, Maximum Strain 6-43

6-39 ANB 'P' Unlined Cartons, Maximum Strain 6-44

6-40 ANT Unlined Cartons, Maximum Strain 6-45

6-41 ANB 'G' Lined Cartons, Maximum Strain 6-46

6-42 ANB 'P' Lined Cartons, Maximum Strain 6-47

6-43 ANT Lined Cartons, Maximum Strain 6-48

6-44 AND 'G' Unlined Cartons, Maximum Strain 6-49

Figure Nr Page

6-46 ANT Unlined Cartons, Maximum Strain 6-51

6-48 ANB 'P' Lined Cartons, Maximum Strain 6-53

6-49 ANT Lined Cartons, Maximum Strain 6-54

Data Plots, Thermal Coefficient of Linear Expansion (TCLE)

7-1 ANB 'G' Glass Point, Unlined Cartons 7-4

7-2 ANB 'P' Glass Point, Unlined Cartons 7-5

7-3 ANT 'P' Glass Point, Unlined Cartons 7-6

7-4 ANB 'G' Glass Point, Lined Cartons 7-7

7-5 ANB 'P' Glass Point, Unlined Cartons 7-8

7-6 ANT 'P' Glass Point, Lined Cartons 7-9

7-7 ANB 'G' TCLE Below Tg, Unlined Cartons 7-10

7-8 ANB 'P' TCLE Below Tg, Unlined Cartons 7-11

7-9 ANT 'P' TCLE Below Tg Unlined Cartons 7-12

7-10 ANB 'G' TCLE Below Tg, Lined Cartons 7-13

7-Il ANB 'P' TCLE Below Tg, Lined Cartons 7-14

7-12 ANT 'P' TCLE Below Tg, Lined Cartons 7-15

7-13 AND 'G' TCLE Above Tg, Unlined Cartons 7-167-14 ANB 'P' TCLE Above Tg, Unlined Cartons 7-17

7-14 ANT 'P' TCLE Above Tg, Unlined Cartons 7-17

7-15 ANT 'P' TCLE Above Tg, Unlined Cartons 7-18

7-16 ANB 'G' TCLE Above Tg, Lined Cartons 7-19'U

7-17 ANT 'P' TCLE Above Tg, Lined Cartons 7-20

7-18 ANT 'P' TCLE Above Tg, Lined Cartons 7-21

Data Plots, Constant Load Shear

8-1 Stage II at One Minute 8-14

8-2 Stage II at 100 Minutes 8-15

Figure Nr Page

8-3 Stage III at One Minute 8-16

8-4 Stage III at 100 Minutes 8-17

Data Plots Constant Load Tensile

8-5 Stage II at One Minute 8-18

8-6 Stage II at 100 Minutes 8-19

8-7 Stage III at One Minute 8-20

8-8 Stage III at 100 Minutes 8-21

Data Plots, 'P' Polymer

8-9 Stage II Swell Ratio 8-33

8-10 Stage II Gel Filler 8-34

8-11 Stage II Mini DPT, Maximum Stress 8-35

8-12 Stage II Mini DPT, Time to Maximum Stress 8-36

8-13 Stage II Liner Bond Insulation Moisture 8-37

8-14 Stage III Swell Ratio 8-38

8-15 Stage III Gel Filler 8-39

8-16 Stage III Maximum Stress 8-40

Data Plots, Hardness, Shore A, 10 sec

9-1 ANB 'G' Unlined Cartons 9-4

9-2 ANB 'P' Unlined Cartons 9-5

9-3 ANT 'P' Unlined Cartons 9-6

9-4 ANB 'G' Lined Cartons 9-7

9-5 ANB 'P' Lined Cartons 9-8

9-6 ANT 'P' Lined Cartons 9-9

REFERENCES

Report Nr Title Date

MAGCP 75 (67) Zero Time Test Results 13 Jan 67LGM-30 Second StageWing VI Propellant

MAGCP 111 (67) ATP Test Results LGM-30 Stage II Propellant 1 Dec 67Wing VI, Phase I

MAGCP 142 (68) ATP Test Results LGM-30, Stage II Nov 68Propellant, Wing VI, Phase I Series II

MAGCP 188 (70) ATP Test Results LGM-30, Stage U Jul 70Propellant, Wing VI, Phase I Series II

MAGCP 212 (71) Propellant Surveillance Report Jun 71LGM-30 Stage II (Wing 6 ANB-3066)

MAGCP 240 (72) Propellant Surveillance Report May 72LGM-30F Stage Ii ANB-3066

MAGCP 256 (72) Propellant Surveillance Report Oct 72Minuteman III, Stage III

MANCP 331 (75) Propellant Surveillance Report Oct 75Minuteman III, Stage III

Aerojet Ten Year Aging Program Sep 670162-AS-6-1A for Wing VI Minuteman

Second Stage Motors and Components

Aerojet Oct 710162-06-SAAS-7

0162-06-SAAS-8 Apr 71

0162-06-SAAS-9 Ten Year Aging and Storage Program Oct 71Wing VI Minuteman Second Stage

0162-06-SAAS-10 Motors and Components Apr 72Program Progress

0162-06-SAAS-11 Oct 72

0162-06-SAAS-12 Apr 73

0162-06-SAAS-13 Oct 74

0162-06-SAAS-14 Jul 75

0162-06-SAAS-15 Dec 75

0162-06-SAAS-16 Jul 76

0162-06-SAAS-17 Mar 77

REFERENCES (cont)

Report Nr Title Date

Aerojet Final Report, Wing VI Minuteman Second Jan 7h0162-06-AS-F StageAppendix E Motor Propellant Aging

MVS-1 Manufacturing Variables, Study of The 1l Jun 76Minuteman Stage II Motor

0162-06-SAAS-18 Ten Year Aging and Storage Program 18 Aug 77

Wing VI Minuteman Second Stage

O162-06-SAAs-19 Motors and Components 19 Feb 78Program Progress

0162-06-SAAS-20 20 May 78

0162-06-SAAS-22 Appendix A included May 79

0162-06-SAAS-24 Apr 80Appendix A May 80

0162-06-SAAS-25 Nov 80

0162-06-SAAS-26 May 81

0162-06-SAAS-27 Nov 81

GLOSSARY OF ABBREVIATIONS AND TEP2!

Aging Trend A change in properties of performance resulting

from aging of material or component

ANA Aerojet Propellant, Stage III (ANB 3066 Formulation)

ANT Thiokol Propellant, Stage III (ANB 3066 Formulation)

ANB Aerojet Propellant, Stage II (XNB 3066 Formulation)

ASPC Aerojet Strategic Propulsion Co.

CSA Cross Sectional Area

DB Dogbone

Degradation Gradual deterioration of properties or performance

* E Modulus (psi), defined as the slope of the line drawn

tangent to the initial linear portion of the curve

EB End Bonded

Effective Gage Length

em Strain at Maximum Stress (in/in)

er Strain at Rupture (in/in)

"F" ratio The ratio of the variance accounted for by the regression

function to the random unexplained variance. The regres-

sion function having the most significant "F" ratio is used

for plotting data. The ratio is also used in detecting

significant changes in random variation between succeeding

time points.

JANNAF Joint Army, Navy, NASA, Air Force Committee

ANPA Propellant Laboratory at OOALC

OOALC Ogden Air Logistics Center

Post Curing Period up to 12 - 16 months after manufacture9

GLOSSARY OF ABBREVIATIONS AND TERMS (CONT.)

Regression The general form of the regression equation isY -a + bx

Regression Line representing mean test values with respectLine to time

S b Standard error of estimate of the regressioncoefficient

Sor S . Standard deviation of the data about the regressionline

S mMaximum Stress (psi)

S Stress at Rupture (psi)r

Standard Square root of varianceDeviation (S )

Strain Rate Crosshead speed divided by the EGL

Thiokol Thiokol/Wasatch Division

itt" Test A statistical test used to detect significantdifferences between a measured parameter and anexpected value of the parameter (determines ifregression slope differs from zero at the 95%conf idence level)

Variance The sum of squares of deviations of the testresults from the mean of the series afterdivision by one less than the total number oftest results

3 Sigma Band The area between the upper and lower 3 sigmalimit. It can be expected that 99.73% of the

* inventory represented by the test samples wouldfall within this range assuming that the populationis normally distributed.

90-90 Band It can be stated with 90% confidence that 90% ofthe inventory represented by tne test samples

W. would fall within this range assuming that thepopulation is normally distributed.

SECTION I

INTRODUCTION

A. PURPOSE:

The purpose of testing ANB-3O66 propellant, used in Minuteman II

Stage II and Minuteman III Stage II and Stage III, is to monitor and

evaluate aging effects on this propellant which will contribute to the

operational motor serviceability prediction. Testing was performed

according to General Test Directive GTD-2C, Amendment 1, and MMWRBA

Project M14058C.

B. BACKGROUND:

Service life testing of ANB-3066 carton propellant from Aerojet

production began at Ogden ALC in 1966. When production for Minuteman

III Stage III was transferred to Thiokol, the propellant samples from

both Aerojet and Thiokol were tested. As lined cartons were produced,

these were tested adding propellant liner bond specimens to the pro-

gram. This report contains data from all these sources for propellant

aged 13 to 178 months.

Significance tables for aging trend lines are given in the respec-

tive sections of this report.

Statistical techniques used are described in Section III.

Very low rate tensile, high rate tensile and stress relaxation tests

are those most nearly related to conditions existing in the motor under

storage, transportation and handling and booster flight.

Low rate uniaxial tensile tests and hardness are routine tests for

all propellant. This report includes these data. Strain dilatation and

cohesive tear energy tests have been applied to only a portion of the

cartons. Strain dilatation data are included in this report; cohesive

tear energy will be included in the next report.

C. SUMMARY:

1. Unlined cartons show a significant increase in strain capability

at very low rate. Although there is a significant decrease for lined

cartons the alert limit will not be reached for approximately 10 years

at the present rate of decrease.

2. ANT-P lined cartons show a statistically decreased strain cap-

ability when tested under high pressure and high strain. Alert limit

may be reached in 10 years.

3. Constant load shears at 100 minutes have already fallen below

the 15.4 psi alert limit f or storage. Individual cartons have already

failed the 23.1 psi alert limit for storage for constant load tensile.

SECTION II

TEST PROGRAM

Cartons representing raw material combinations were subjected to a

random selection process designed to test all m'aerial lots within a two

year-four test periods interval. When propellant cartons have been aged

one year. they are added to the test program. Latest acquisition of

Stage II was manufactured Dec 17, 1978, and Stage III manufactured April

4, 1977.

Propellant cartons are identified by source of manufacture. Stage II

and III propellant manufactured by Aerojet Strategic Propulsion Company is

identified as ANB and ANA respectively. Thiokol Company Stage III propell-

ant is identified as ANT. All regressions use this nomenclature as well as

additional information as to the type of carton, lined or unlined. Symbols

are used on multiple regressions to separate types. There were two supp-

liers for polymers for Stage II propellant, "G" polymer manufactured by

* General Tire and Rubber and "P" polymer for Phillips. In this report

the two polymer types have been treated statistically.

Lined and unlined cartons of ANB and ANT have been combined in regress-

ion analysis for comparison purposes. and cover the time span from 13

through 178 mo.

The physical-mechanical tests which relate directly to stress analysis

are limited. Very low rate tensile test data is related to storage condit-

ions, and high rate rails tested under pressure relate to ignition. Stress

relaxation modulus also relates to storage conditions. The thermal coeffici-

ent of linear expansion reflects some of the thermal stress to which the motor

is exposed.

SECTIOt IIISTATISTICAL ANALYSIS

Test data from physical and chemical tests of ANB-3066 propellant

and from casebond test specimens have been analyzed statistically to

determine whether aging trends exist. ANB-3066 propellant was categor-

ized according to the manufacturer and the polymer type used in manu-

facture of the propellant. Two polymers were used. They are G-polymer

produced by General Tire and Rubber and P-polymer produced by Phillips.

For convenience in data analysis, the following code designations were

ANB-3066 Polymer

* Manufacturer and System Application Code Code

Aerojet: MINUTEMAN III Stage 2 ANB G and P

Thiokol: MINUTEMAN III Stage 3 ANT P

Test specimens were machined from two types of cartons, lined and unlined.

The lined cartons have simulated case liner along one surface. The car-

tons are also subdivided according to lot.

Casebond test specimens are taken from lined cartons. For casebond

shear or casebond tensile testing, a sampling of approximately 11 shear

or tensile specimens can be taken from a carton. For each carton sampling,

different weights are attached to the individual specimens with the intentU

to cause failure over a range of one to 100 minutes. The specimen data in

each carton sampling is subjected to regression analysis with the times to

failure regressed against stress. From these carton regressions were cal-

Uculated one minute and 100 minute stress values, see Tables 8-1 to 8-6.

From each carton regression, with the exception of those having low curre-

lation coefficients, derived one minute and 100 minute stress values were

used to form a set of aging regressions, see Figures 8-1 to 8-8. Outlier

data were also excluded from these regressions. The final analysis was

to form multiple regression analyses from original specimen data, see

Table 8-7. From these multiple regression analyses were formed Charts

1 to 6 from which times to failure at specific alert limits can be matched

with carton age where 5% or 50% failure limits are given. These deter-

minations should parallel the progress of casebond failure in field motors.

Additional liner bond test data are contained in Tables 8-8 and 8-9

and a stumary of regression parameters pertaining to these data are in

Table 8-10.

Linear regression analysis, of the form Y - a + bX, was usually used

in evaluating data trends for most kinds of propellant tests. Where plots

are presented, the variance about the least squares trend line is used to

compute a tolerance interval such that at the 90% confidence level 90% of

the sample distribution falls within this interval. This tolerance inter-

val is extrapolated 24 months past the age point corresponding to the old-

est specimen tested. Outer dashed lines marking a three standard deviation

limit from regression are also given. The statistical significance of the

slope of the trend line is evaluated for each regression plot. If signifi-

cant, it is an indication that change over time is occurring.

Statistical data from regression analyses of similar test parameters

were subjected to analysis of covariance to determine whether test data

differences existed due to propellant manufacturer, polymer type, or kind

of carton, lined or unlined. For each series of propellant tests such as

tensile at 0.0002 inches per minute or stress relaxation, there is a cor-

responding analysis of covariance comparison of regressions. These tables

are included in their respective sections. These analyses of covariance

compare variances, slopes, and elevations of regression data. If no sta-

tistical difference is found between two sets of regression data, then the

two data sets can be combined into one regression analysis which has been

done in a few cases. Where such has been done, the plotted regression

data are differentiated through the use of different symbols.

SYMBOLS USED ON MULTI-SYMBOL REGRESSION PLOTS

000 ANA G Unlined a

001 ANE G Unlined C

002 ANB G Lined A

003 ANT P Unlined +

004 ANB P Lined x

005 ANT P Lined

SECTION IV

VERY LOW RATE TENSILE

LOW RATE TENSILE

A. Very Low Rate Tensile:

This test uses a 1/2 inch thick (1.27 cm) JANNAF dogbone. The speci-

mens are tested at a crosshead speed of 2 x 10- 4 in/min (8.5 x 10-6 cm/sec),

770F (250C) and ambient RH. Very low rate tensile testing is related to

strain capability for storage at 600 F.

Lined cartons show a statistically significant decrease in strain at

rupture (Table 4-1). Maximum stress is generally statistically increased

(exception ANT "P:). Modulus is also significantly increased.

Unlined cartons show a statistical increase in strain at rupture. Mod-

ulus shows a significant decrease (ANT "P" being the exception).

Lined cartons show lower standard deviations than unlined cartons.

B. Low Rate Tensile:

This test utilizes the same type specimen as very low rate. Crosshead

speed of 2 in/min (8.5 x 10- 2 cm/sec), 77 F (25°C), and ambient RH are

the test conditions.

TABLE 4-1

VERY LOW RATE TENSILE

Significance of Regression Slopes

System Sm Fig er Fig E FigA

ANB G Unlined NS 4-1 Sig inc 4-2 Sig dec 4-3

ANB P Unlined NS 4-4 Sig inc 4-5 Sig dec 4-6

ANT P Unlined Sig inc 4-7 Sig inc 4-8 Sig inc 4-9

ANB G Lined Sig inc 4-10 Sig dec 4-11 Sig inc 4-12

ANB P Lined Sig inc 4-13 Sig dec 4-14 Sig inc 4-15ANT P Lined NS 4-16 Sig dec 4-17 Sig Inc 4-18ANB G & P Lined Sig inc 4-19 Sig dec 4-20 Sig inc 4-21

TA3LE 4-2

LOW RATE TENSILE

System Sm Fig er Fig E Fig

ANB G Unlined Sig dec 4-22 Sig inc 4-23 Six dec 4-24

ANB P Unlined NS 4-25 NS 4-26 Six inc 4-27ANT P Unlined Sig inc 4-28 Sig dec 4-29 Sig inc 4-30

U ANB G Lined NS 4-31 NS 4-32 NS 4-33

ANB P Lined Sig inc 4-34 Sig dec 4-35 Sig inc 4-36

ANT P Lined Sig inc 4-37 Sig dec 4-38 Sig inc 4-39

TABLE 4-3

ANALYSIS OF COVARIANCE COMPARISON OF REGRESSIONS

VERY LOW RATE TENSILE (0.0002 in/min)

Lined Vs Unlined Sm Er n

ANB P-polymer Residual Variance S S S

Slope S S S

Elevation S S S

ANB G-polymer Residual Variance S NS S

Slope S S S

Elevation S S S

ANT P-polymer Residual Variance S S SSlope S S N1S

Elevation S S S

ANB P Unlined Vs ANT P Lined Residual Variance NS S S

Slope NS S S

Elevation S S S

(- 9ymer Vs P-polymer

A';B Lined Residual Variance 1S NS NSSlope NS NS NS

Elevation NS NS IVS

AIB Unlined Residual Variance S S SSlope NS NS INS

Elevation S iS S

ANB G Unlined Vs ANT P Unlined Residual Variance S S SSlope S NS SElevation NS S S

ANB G Lined Vs ANT P Line' Residual Variance S %S NS

Slope S NS %S

Elevation NS S S

A1B P-polvmer Vs ANT P-polymer

Lined Residual Variance S S NS

Slope S S NSElevation S S S

Unlined Residual Variance S S SSlope S NS S

Elevation S S NS

NTOTE: Sm - Maximum Stress, Er a Strain at Rupture, and E - Modulus.

S means a significant difference and NS means not significant.

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TABLE 4-4

ANALYSIS OF COVARIANCE COMPARISON OF REGRESSIONS

LOW RATE UNIAXIAL TENSILE (2 in/nin)

Lined Vs Unlined Sm Er E

ANB P-polymer Residual Variance S S S

Slope S S NS

Elevation S S S

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Slope NS NS NSElevation S S S

ANT P-polymer Residual Variance S S S

Slope S S S

Elevation S S S

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Slope S S S

U Elevation S NS S

G-polymer Vs P-polvmer

ANB Lined Residual Variance S S S

Slope NS NS IS

Elevation S S S

ANB Unlined Residual Variance S S S

Slope NS S S

Elevation S S S

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Slope S S S

Elevation S S S

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q Elevation S NS S

ANB P-polymer Vs ANT P-polymer

Lined Residual Variance S S SSlope S S S

Elevation S S S

Unlined Residual Variance S S S

Slope S S S

Elevation S NS S

4 - 25

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SECTION V

HIGH RATE TENSILE

A. High Rate Triaxial:

This test utilizes a specimen 3/4 inch (1.9 cm) GL rail by 5 inches

(12.7 cm) long. The specimens are tested on the MTS at a crosshead speed

of 1750 in/min (74.08 cm/sec) with 600 psi (42.18 kg/sq cm). Strain rate

is 1000 in/in/min. These conditions simulate that of the motor at igni-

tion. Only ANT P lined cartons show significant trends in all parameters

(Figures 5-13 to 5-15). Less than one-half of all parameters are statis-

tically significant. No regressions can be combined.

B. High Rate Dogbones:

This test is performed under the same conditions as the rail specimens.

The specimens are shortened dogbones with a nominal gage length of 0.75".

All systems show a significant increase in maximum stress. Modulus

shows a significant increase except for ANB P lined cartons. Only ANB G

lined cartons do not show a significant decrease in strain at rupture

LM (LJ;le 5-2).

Composite regressions have been made for strain at rupture. Only these

conditions do not show statistically significant variance.

TABLE 5-1

V- HIGH RATE TRIAXIAL

System Sm Fig er Fig E Fig

ANB G Unlined NS 5-1 Sig inc 5-2 Sig dec 5-3ANB P Unlined NS 5-4 NS 5-5 Sig dec 5-6ANT P Unlined Sig inc 5-7 NS 5-8 NS 5-9ANB G Lined NS 5-10 Sig inc 5-11 NS 5-12ANB P Lined NS NS NSANT P Lined Sig inc 5-13 Sig dec 5-14 Sig inc 5-15

TABLE 5-2

HIGH RATE HYDROSTATIC

System Sm Fi, er Fig E Fig

ANB G Unlined Sig inc 5-16 Sig dec 5-17 Sig inc 5-18ANB P Unlined Sig inc 5-19 Sig dec 5-20 Sig inc 5-21ANT P Unlined Sig inc 5-22 Sig dec 5-23 Sig inc 5-24ANB G Lined Sig inc 5-25 NS 5-26 Sie inc 5-27ANB P Lined Sig inc 5-28 Sig dec 5-29 NS 5-30ANT P Lined Six inc 5-31 Sig dec 5-32 Sig inc 5-33ANB G vs P Lined Sig dec 5-34ANB vs ANT P Lined Sig dec 5-35ANB G vs ANT P Lined I Sig dec 5-36

TABLE 5-3

ANALYSIS OF COVARIANCE COMPARISON OF REGRESSIONSHIGH RATE TRIAXIAL TENSILE (1750 in/min. 600 psi)

A'TB P-polymer Residual Variance NS S SSlope NS NS SElevation S S S

ANB C-polymer Residual Variance S S SSlope NS NS NS

Elevation NS S S

ANT P-polymer Residual Variance NS S SSlope NS S SElevation S S NS

ANB P Unlined Vs ANT P Lined Residual Variance S S SSlope S S S

S Elevation NS S S

G-Volvmer Vs P-polymer

ANB Lined Residual Variance S S iSSlope .S S SElevation NS NIS NS

ANB Unlined Residual Variance NS NS iSSlope NS S "IS

Elevation S S S

ANB G Unlined Vs ANT P Unlined Residual Variance S NS SSlope S S SElevation S S S

AIB G Lined Vs ANT P Lined Residual Variance NS NS NSSlope S S SElevation S S S

ANB P-poly-er Vs ANT P-polvrner

Lined Residual Variance S NS ,SSlope S S SElevation S S S

Unlined Residual Variance S NS SSlope NS iS SElevation S S S

-N-.r CL.cow 0-

(V)0(Wc 0 0

0 comwo a r-I z

aw r XX

x 0Ix x

(a-e~( l m x XIUI Iz

ujcrc ' IZZZ JU I- XX 0

IM-6 : I A-

41hZnu I. x I"I

Ozz j XX 0 0amX X 0

NL.I.I.J x U' xcc cccc= (xxi

rcc WX (aI! U~ 0 cr. (a)

WO(ZCDOC I X X Xc

X e Ix lX IXx x cc

(DwN 0zIN -zx0 cIO CM I)'cc .II

II..0 WAI&.. loz 0 1-

oo'ods oo-oiL oo00b9 oo009s oo-o9I oo'oOdIScI = AMfS83W :10 lINf

SS3WIS wflwixuw = 313WUUUd

wtmrl co 0co 0 co)

X a --

YA ZD r-

NUU0 x z

la"Olo XmCc~~~~~ zL .L.C

* ILE 'Z" x X 64 X -

X XX C14

L~(c(lhA x x cm

I X. -- t-i Ii L -L

UM ccc c

O*JJnL X cr

=UU.~a cau1 49s"Wi x xLLJ0

+~~~ "wOoaxcI&. n 0 0-1

OI'O~~~ wC 6O S' ~NI/N = YSx ~ If

C)+f~dl .L IYL =Y.xb

I u~i I5-5Un-

ONOcc I (0

cc cu co I

x InZ IX

r- cc Ir cr x

XYU L.L X CC Z

+ii NIN x X 1 0

Ijx IM L.L .L cn 0 Q

Co o Ia-c w+ x ILL J /

n U U I. U;.lcccm u u .i& cI LI 0

.0*ZWC X co

- I ~ X I+ I

o c " c c x xI- ~ XL I- - 0) coc x

IL~ z0 -Iw

ooo-dz oo %do oo-dg oo- o 0 da 00.?*OTM ISd = 3YflS83W .49 .INfl

Sfllflow U313WUYUJ

I zzzwcccc0

*n ci ci

NZ) 0(f) -J - )c

cm LLJaw*w-zzz N 0 -

+ I L O .

NIAL. . LL.~a Wj a Q040400C L Z

I x Ix0zwc I toX

na~a, X xxx \ C

z x w0N ria,(

U SJ&W cc

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*nn-4c x -xz

w I,, Ix

cco- ds Do - ds GOOOL 00Ooh9 00'ods 00-09b0ISd = 3YflsU3W AD iIk';l

ss~Y.Ls wflwix8w U313.W8WU

ccc (V)N-

LIO ) cc(

coa Z0 -1- I- C

LLI CC CC c

-ozzz u _c :3

S1 cc IL

I xLL XL tIaw 1:X"JC.U CL X w

x-CC ~X c -

NWxWA XSX X x

XA x x aX (.

III X x L

CY 02 Xx *).co ca, II I x

do~~ M ozzhcor Z xa

otn O ICO X~ OX x vcfcNI/NI: =-f IO .LI

rWfl.Ldfl _4IYI 13~~

co-M5-8

COr-( Cc =0 0

r- CD -,Cum0 u z~

N Iz0 -0

v cmC3 op- Z(azzzz0 (n -i

(W~ILIA CC CC CCB Z

* - - - cc

*. u z0 0

(V Uh~l c n q2inU.U.U.u Lu~ Z

IIJWaJ LJ CC- /LUU.% XX X X Ir(unLlI x x I

&L x. U. Ipj"CoX X~

- x X a

C3 XX/o n xCoo) L I X x xcc

0o0001 0000 oo 'ds ovol 0 od 00,OTM isd = 3WflS83W -49 liNf

sninoow W33UW=

+K"~Mrw am

M =c U

CUM zL

;Cca I* * z

alZZ ca 0

w - -.L." mC

wzz: zI- -6 I.- IX ~CniniWI I % x

Xx x£1Jww X I-Ix x I

OICJUI I ,S x C n 4I X x 10 z

.ozzzicIXI LW

@)U5UII cr.-pt *.u I-x x

U, x *zza XXX X

X~ XXI X *AI

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Campo 42 u x 2c cSL" caC

I-w X x X

5 - 10W)Iw

I W I IMUM

Ca--- 04-h Z

-c~ U)I LJ

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+UU a I (0x0 o 0*I 0 0 0 1i

'u x , x cU. Lt.b LLS x I(0r Z0000cC. x x ccLJ

I IUw IX

'Uz= CL X X X I *

Clccccz x0 -* .)JCCU) (X ~X / 0 z

Cc a " 6 0 I)LI)Wpo XL =

+ ~ SIf"~ aX x crx CC

z x zt'K cc

e; v -cr6g xC I.-LO 1

NIN IWl~~ +~ iIf3&n.LjrI W IWS= z~8

MWCIncc5 - a

VC)cc~ CD o u

-ov" 9LOCDC U:

zz C3* zzBi

C UW.C J IJ

co X~ IIX, x zL C I 0 Z

M .. LL. W 0

&wwhuw

ac zzzcg X 'X

4"n"iJ x .X 0

I x x 0

Ce~w XX x c

U). f- I--

or-c"W5 1 12w

r- - =-nC

.n om L..

if z60 T -0--u0

_~ cr CC(f c

M / / - L

I~ L i

M oto+ It x

C) 0 / / ccI- PC-

xi L 'iLA

0 X c CD

iDU-J-U LJ m J XL- .

I~ (n~xLn xJ

CD.. -0ZL

>000L OOm ~ XO09 009 01

Cli = I I r&Oli F CD'

C" = U: UDr-j - CD L

Dr~dcz+ + LIc

('L) - a)

* 4.L~L.C.

LU J+ OI L ..

+ 111i : CD C

x- LU LL

W.L Za~.Ja L

r-L) U L U X LLx)Z C x C:

CIOL x, xx X4-C X: L: U

r~~~~i~ LoL zL cC

zt 01 CL ? hO0iNI/N L cc~W OiI

1~Ul~dlYi~ I~J9 U~~WX'X

c)5-14

LL L L L

. . . CU

U- - rz

a,---nU -Uz 0(7

,- Z 2r

,-zzz iiI -

IU- Ic C: CC-1 L- I. Z I

LL L i L jJ

r- cr cr L

- --- JL

Ci -C - x-LJxLLo X Ic

z -. 1IFI

I xCD 0 x

w11 Uj CL z

0llO = 'dh

(D r5 - 15q ma) L

0 0 CD

cr 00 C0

M rkj QLU -

r CD ItI

CDLjU U0L

u, * 0

- -- Mr-

-i - LL-I- 0XU)d0 0z 0 LU

- cc:(0

-i -L WU LiDZZZ L XL

'c : ccru LU xc

CML LLJ cm 1-

-- U- 0~ z-L-LJ I

x L ca

X U CD (r

11 L XK Xc

x-- 0, E 'Xx X Vi I

x- 0 x CC,

c* Q.4 a) XX xCD C

crI xwCM xx0

w ZO(Ca: X C

L O hL 00'099 00 t,9 00-06S hS 0 OOtI Ootisd = Yl~ i.dOd~ joIINf

ss U1i wnfwix'~w Y31 WHU~d

5 - 1.6

mo= CC

Vr) ('Uz-

MU' ~D)

- L- U

0i C) 0/ I

x- ccc / LIDZC) I. L- (ic-VI

/L I. .IL -

x-z~ /L cc/

z 'I Iit x CL:~

-- C/ X~ /+CC I + /

U LL LL I '

/ 1 /Xr- (J w

M. C)fl U x kz

oo cc'. -. u" -r a: cc XN

11l~fl It itI =

+ 4.4 +

LLJ~ 0L Lco M r- V

r-(Dhoa:

00 1 COz4+D a)- D C

a) C 0:) coll

r~j Lo LL

r- C 4-IDt- D0.zz . .- 110~U~ Z0(f)3

x 11 if I

(Ozzz CD - LL

r-~~~L L- UrxLxx --- (D)C 0-

U) 0A U-L.

1.14 0 - c

M L. i L.) It 0

d = 'dl CD XI toM f)llfL) LO ON = C:)WTh

C:) - 5 - 18 Xr-IU L L L J C3xXC

TABLE 5-4

ANALYSIS uF COVARIANCE COMPARISON OF REGRESSIONS

HIGH RATE HYDROSTATIC TENSILE (1750 in/min, 600 psi)

)VIB P-polymer Residual Variance NS S SSlope NS NS SElevation S NS S

ANB G-polymer Residual Variance S NS SSlope S NS SElevation S S S

ANT P-polymer Residual Variance NS S NSSlope NS S NSElevation S NS S

ANB P Unlined Vs ANT P Lined Residual Variance N! S SSlope S NS NSElevation S NS S

C-polvner Vs P-Polvmer

AN11 Lined Residual Variance NS N-3 SSlope S NS SElevation S "S S

ANB Unlined Residual Variance S S SSlope NS S SElevation S S S

ANB G Unlined Vs Ar P Unlined Residual Variance S S "sSlope S NS SElevation S S S

ANR G Lined Vs ANT P Lined Residual Variance NS NS SSlope S NS NSElevation S NS S

A:13 P-polymer Vs ANT P-polymer

Lined Residual Variance S "S NSSlope S NS SElevation NS NS S

Unlined Residual Variance S NS SSlope S S NS

Elevation. S NS S

5 - 19

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U - r-

+ ~ r +0 C- C

cnzzmz 0 r.CC~cc crcr

a~crKra:LO U - U -LL \ j

L L.L4 -c3 z

N - XL L L .

c E C = x '&j E z4. L- *X= I t

-- 0 - * x 4

U.J Xi L - J r

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LD xxX X

00S9 ~ 0(9 00 h O9

LnxC V x wnu~ yrwJ~XX~~ - 20X

LLLLJLL =

-Z u- LUJ

cLLUA 0 I

LL x xXCL,1(LJ LU

r iU - I

V r.--JM x xX QX X'~ zD

il IIe II IIX 0

kL x C

NIN x x 'f5~~ i~k xICDx

5 CC 23.

mnom C cCD0 rrLLJ LA L0(D = ) C0

cc) a) a

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z 0 j z

c.-) t- I. I 3C) LzrZZZ 0 z

CD~OV - -

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o ii II 00 c0 -4

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z xSX X X XL

II CC)

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In .4 r-C

LL CZ 0)

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snifloow = iij H

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r- Kf r) X Lo M Cc C

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LOZZZ LL

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~ z CD

It 09 M0? o~00h o' 0cOII 1d=xflo<O If

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ru cc 0

+*+ U-1

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VL4 U)UU ,.-

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cc -Z CD

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SSJ"1i WflWIXHW U3NWJ~1j

5 - 29

C3 0 0

r- c~ c cr

r coi c LL-

a.4 ri CU

z LzI ZI,

"i X a CC:)

.- zzzII I e0

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L-) /j C Cr-- LE = IT X:fz .j I-U(I L : C

= -- - I

C)LL. U L JX E ~

+I II +I C3

Ln 0 0NI/N (D c'flr x5 IIND

udlnfl fl- NIco ~I~U

cr~ - 30C

D-R120 429 PROPELLANT SUREILLNCE REPORT RN-3866 PROPELLNT(LI)

21/OGDEN AIR LOGISTICS CENTER HILL AR UT PROPELLANTANALYSIS LAB E M DALABA RUG 82 MANPA-473(82)

IUNCLASSIFIED F/G 21/9. 2 L

Wiii ,_mo L M_ 111 .0 I 128JW

111 10 132 96 L 211 . 12.2 L W

____ iii, i ___

DI k1111 III1.81111 1 . 5 111 .4-MII1.25 II -A4 1.6 IN

MICROCOPY RESOLUTION TEST CHART NATIONAL BUREAU OF STANDARDS1963-A

NATIONAL BUREAU OF STANDARDS-1963-A r

) ii :. "i' -.. .

- 6 1.8 2

1111"11111

MICROCOPY RESOLUTION TEST CHARTNATIONAL BUREAU OF STANDARDS-1963-A

1 .0 Lh II5 5 1 2.8III_---- _ ... iiiii =o ___

iiiii ,_. iiii .., 2 ;.___ 2 96 1 -

1111L6 -l1.

1111.25 111IIL 111115 I IIII I 11111

MICROCOPY RESOLUTION TEST CHART MICROCOPY RESOLUTION "EST CHART

NATIONAL BUREAU OF STANDARDS-1963-A NATIONAL BUREAU OF STANARM 1963-A

4. + +

U')r- a c

a) Cl LOC: Ln CD

... LLJ

r- - zu -

L.-L-Lu 0r

a z0 0- a)ccsL

4. L LZ r=.

rL- L- L. -L

I- x--

cc::, X 0

C)ni=oow

=~ -r 31

+ I +=LUULj LU c

(I,: fl= Z

mrcc= z cS U-- LiU ) U

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U, LU -f i

L- M 1

0 M M ED = I I,

LLL-C = x I-b

L LU LLuJ LUJ =xx=x~ LiL) - O

ozzzo0- (

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cc -LLLL J I

+ *;C I CCxxCI

+I I~ MII

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to L: ) L U>

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+7i2 3 x -AUj LAJLLJ z

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* *MM0- x

ct) *r ( I

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+ U- 0-t

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)'0 0 -

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co (m x

x x Ljr.1

r ooi Moo oodg ood 00 Ox

r, 0 I _

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(U...Lk. -00

O C C C W xd LL. x LLJ (

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NI/NI 0u~3 ADI-

5 - 38

IAJ LLJ LL

-l 0) aoM

r- c) w0 0-an, (V a-C

C4 0; IC '

x uiu, x 0H0 0

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r u ILi .U LI X (0 CC crI x x* I ~

-" Lo 0 LL rY ( xc

*L 0 0

qL 4 , (In I

U.= "Z 0 1.-

NI/NI = uYfS83W YO .INfl3uflidfl 18 NIBYiS W313J.W8Y~d

5 - 39

co0 (" = 0

0o z 0

C4 (n na4 ui

4.0 0 '0LLcc cc I,0 0 zC-z

U U LUC A L LL CC

IL C 4

+ v a 0 ~ of

LLLLLU0/, ,/ (

L. -. -~ J cc

I, / d I

-- z z I 0uu~u 0 cc4 4

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;r5 - 40

+ + (W

SECTION VI

STRESS RELAXATION AN~D STRAIN DILATATION

A. Stress Relaxation:

An end bonded 1/2" x 112" x 4" specimen (1.27 x 1.27 x 10.16 cm) is

tested on the stress relaxometer. Load is applied at 2 in/mmn (0.085

cm/sec). Timing begins when the load is applied. Specimens have been

strained at both 1% and 3%.

The use of 1% strain over the range of temperatures was not *-tro-

duced into the program until Phase 3 of Minuteman III testing Phase

B Series 2 for Minuteman II. In this report, data for both 1% 3%

qat 770F are show for a comparison between applied strains. (T.. has

shown that strains introduced into the propellant during machining remain

in the samples and a higher strain is required to give reproducible and

accurate relaxation moduli.) The 1% strain is considered to be very mar-

ginal insofar as reproducible data is concerned.

Table 6-1 gives the significance of 't' for both 1% and 3% strains.

The number of specimens represented in each regression is shown so that

the preponderance of test data at 3% strain is obvious.

Unlined cartons of ANE G show a significant decrease for 1% strain

at 1000 sec. Lined cartons show a significant increase at 3%.

Unlined cartons of ANB P show a significant increase at 1% and 3% at

10 sec, but the 1000 second modulus at 3% shows a significant increase.

Unlined cartons of ANT P do not show a significant decrease at 1%,

but the decrease is significant at 3%. Lined cartons continue to show a

significant increase.

Gradient stress relaxation shows that the minima occurs at approxi-

mately 1.8 inches from the liner. At 1000 seconds and 2.5 inches ANB G

shows a marked increase in modulus whereas ANB P shows a decrease.

B. Strain Dilatation:

The same type of specimen is used for this test as for stress relax-

ation. Testing is done utilizing a gas dilatometer at 77 F (25°C) with-

out pressure.

Poisson's ratio at 15% strain consistently shows a significant

decrease (Table 6-2) except for ANB G unlined cartons. At maximum strain,

Poisson's ratio is significantly decreasing for unlined cartons for '-

polymer

TABLE 6-1

STRESS RELAXATION

10 sec 10 sec 1000 secSystem N 1% N 3% 1z 3%

ANB G Unlined 192 NS 448 NS Sig-dec NSANB P Unlined 171 Sig inc 358 Sig inc Sig inc NSANT P Unlined 168 NS 216 Sig dec NS Sig decANB G Lined 51 NS 51 Sig inc NS Sig incANB P Lined 99 NS 96 Sig inc NS Sig incANT P Lined 162 Six inc 183 Sig inc Sig inc Sig incANG & ANT P Unlined Sig dec

TABLE 6-2

STRAIN DILATATION

Poisson's Ratio Poisson's Ratio Dilatation atSystem at 15% Strain at Max Strain Max Strain

ANB G Unlined Sig inc NS Sig incANB P Unlined Sig dec Sig dec NSANT P Unlined Sig dec Sig dec NSANB G Lined Sig dec NS NSANB P Lined Sig dec NS NS

ANT P Lined Sig dec NS Sip dec

TABLE 6-3

ANALYSIS OF COVARIANCE C'MPARISON OF REGRESSIONSFOR STRESS RELAXATION MODULUS

Seconds at % Strains1% Strain 3% Strain

Lined Vs Unlined 10 1000 10 1000

ANB P-polymer Residual Variance S S S SSlope S "S "MS ISElevation S S S S

ANI3 G-polymer Residual Variance S S S SSlope NS S NS SElevation S S Ns is

ANT P-polymer Residual Variance S S S SSlope S S S SElevation NS NS S S

ANB P Unlnd Vs ANT P Lined Residual Variance S S S SSlope NS 1S NS SElevation NS NS NS 1S

Gpolymer Vs P-polymer

ANB Lined Residual Variance "S NS S SSlope NS 1S US NSElevation S NS NS NS

ANIB Unlined Residual Variance S S S SSlope S S S SElevation S S S S

ANB G Unlnd Vs ANT P Unlnd Residual Variance NS NS S SSlope NS NS S SElevation S NS S S

ANB G Lined Vs ANT P Lined Residual Variance S S S SSlope NS S NS "ISElevation S S S S

AB P-polyMer Vs ANIT P-polymner

Lined Residual Variance iS NS ;S NSw Slope S S NS NS

Elevation S S S S

Unlined Residual Variance S S S SSlope S S S SElevation NS S S S

C~j - Cm

C:)Ca) --/C ZZU=LJ

LS cn :L:III';)cr u0 - 0 - t.

CC) LI0

-zz : C

LL L-L- L

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cWC -) - L i L ) Lo x c- -- £ fllflx x

LL- U LLJm x LL6-5

LLfJ LJ

III Li

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6 - 35

TABLE 6-4

ANALYSIS OF COVARIANCE COMPARISON OF REGRESSIONSFOR STRAIN DILATATION TESTING

Dilatation Poisson's Ratioat Max at Max at 15%

Lined Vs Unlined Strain Strain Strain

ANB P-polymer Residual Variance S S SSlope NS NS NsElevation S 14S S

ANB G-polymer Residual Variance S S SSlope S NS SElevation S NS S

ANT P-polymer Residual Variance S S SSlope S S NSElevation S NS .4S

ANB P Unlnd Vs ATr P Lined Residual Variance S S SSlope S S SElevation NS NS NS

C-polvmer Vs P-polymer

ANB Lined Residual Variance S S NSSlope %S US S

Elevation NS NS NS

ANB Unlined Residual Variance S 5 USSlope I'S US SElevation S S S

ANB G Unlnd Vs ANT P Unlnd Residual Variance S S SSlope NS S SElevation S S S

ANB G Lined Vs ANT P Lined Residual Variance S S NSg Slope NS N;s S

Elevation NS S NS

ANB P-polymer Vs ANT P-polymer

Lined Residual Variance NS S SSlope S NS NSElevation NS S S

Unlined Residual Variance NS INS SSlope NS S SElevation NS S NS

6 - 36

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6 - 40

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6 - 52

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6 - 53

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co 6 54

SECTION VII

THERMAL COEFFICIENT OF LINEAR EXPANSION

Thermal coefficient of linear expansion (TCLE) is run on the DuPont

990 Thermal Analyzer using the thermomechanical analyzer with expansion

probe. The specimen used is a wafer approximately 0.200" (0.508 cm)

thick by 0.33" (0.84 cm) diameter. The specimen is cooled to -120 0 C

(-1840F) then heated at 5°C/min (90F/min) to 400C (1040F). The glass

point (Tg), TCLE below Tg and TCLE above Tg are determined.

According to ASPC, which uses a volume coefficient of expansion, the

glass point for propellant stored at 80°F ranges from -910 C (-132 F) to

-79.5°C (-1110F). All systems show a significant lowering of the glass

point.

Expansion below the glass point is not considered to be a significant

factor in analysis. This region is linear. Lined cartons of ANB G and

P do not show a trend. Others show a significant increase.

TCLE above Tg is not significant for ANB G lined cartons. ANB G and

P unlined cartons do not show a significant increase. ANB P lined and

ANT P unlined and lined cartons show a significant decrease in this para-

meter.

TABLE 7-1

System Tg Fig Below Tg Fig Above TR Fig

ANB G Unlined Sig dec 7-1 Sig inc 7-7 NS 7-13ANB P Unlined Sig dec 7-2 Sig inc 7-8 NS 7-14

ANT P Unlined Sig dec 7-3 Sig inc 7-9 Sig dec 7-15ANB G Lined Sig dec 7-4 NS 7-10 NS 7-16ANB P Lined NS 7-5 Sig inc 7-11 Sig dec 7-17ANT P Lined Sig dec 7-6 Sig inc 7-12 Sig dec 7-18

TABLE 7-2

ANALYSIS OF COVARIACE COMPARISON OF REGRESSIONSTHERMAL COEFFICIENT OF LINEAR EXPANSION (TCLE)

TCLE TCLEGlass Below Above

Lined Vs Unlined point GP CP

ANJ P-polymer Residual Variance S 14S SSlope S NS SElevation S S S

A.NB G-polymer Residual Variance S NS SSlope NS S NSElevation S S S

A'1T P-polV7ar Residual Variance S NS SSlope S S SElevation S S NS

S ANB P Unlnd Vs ANT P Lined Residual Variance S S SSlope NS IS SElevation S S Ns

n-polvner Vs P-polymer

-ANB Lined Residual Variance S :IS SSlope NS S NSElevation S NS S

ANB Unlined Residual Variance S NS SSlope IS I*S NSElevation NS NS NS

.INB G UnInd Vs ANTT P Unlnd Residual Variance S S SSlope S S SElevation S S NS

ANB G Lined Vs AIT P Lined Residual Variance S S SSlope IS NS NSElevation S S S

.NB P-polymer Vs AT P-polmr

W Lined Residual Variance NS S SSlope S "S SElevation S S S

Unlined Residual Variance NS S SSlope S S SElevation S S NS

KI~C)en C)

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SECTION VIII

CASE LINER BONDS

Cartons of propellant were lined with SD-851-2 liner/V45 rubber simu-

lating motor conditions. In the preparation of the cartons, liner some-

times penetrated the propellant to a depth of 0.5 inch. Irregularities

are most apparent on outer surfaces. Corners may be particularly affected

by curvature of the insulation.

Liner color varies from a pale buff to deep buff or a deep pink which

apparently develops from moisture plus anti-oxidant. In general, the pink

liner tends to be sticky and strings out in tensile testing. Shear strength

may be negligible.

00-ALC has made an extensive statistical study of the constant load

tensile and shear tests. Regressions for these data as well as other para-

meters are included in this report. Limited swell ratio and gel filler

data on liner as well as insulation moisture were compared (Tables 8-8 to

8-10). A more detailed correlation is planned for the next report.

TABLE 8-1

STAGE 2 CONSTA:T LOAD SHEAR REGRESSION DATA, G-POLYM.R

The regression model used is of the form log Y a + b(log X)

where X - shear stress and Y - time to failure.

TEST PIUSE BLjge 1 min 100 min

(mo) Lot Motor Intercept Slope n r Stress Stress

22 60 AA21311 13.0701 -7.9684 12 -.973 43.676 24.505

25 59 AA21283 12.1143 -7.3717 12 -.951 43.989 23.553

29 58 AA21209 13.3537 -8.3308 11 -.977 46.022 26.478

32 49 AA21013 14.1541 -8.6622 6 -.954 43.053 25.300

35 53 AA21063 12.4473 -7.4627 12 -.915 46.552 25.115

37 35 AA21106 13.9609 -8.5201 12 -.982 43.510 25.343

38 52 AA21021 10.4349 -6.3359 12 -.917 44.355 21.443

TEST PHASE C

60 60 AA21294 11.2125 -7.2152 12 -.976 35.800 18.910

43 59 AA21282 11.1911 -6.9292 12 -.966 41.216 21.205

46 53 A21234 16.1773 -10.136 12 -.994 39.447 23.044

52 53 AA21071 14.2785 -8.4631 12 -.975 43.545 28.181

56 55 AA21117 11.5434 -7.1340 12 -.975 41.504 21.764

TEST PHASE D

68 60 AA21321 5.02779 -3.2491 11 -.585 35.274 17.365

72 59 AA21260 33.7135 -2.8076 11 -.896 15.878 3.0792

82 58 AA21179 15.6875 -9.4493 11 -.996 45.726 28.087

83 52 AA21034 11.1826 -6.9763 11 -.964 40.081 20.713

83 55 AA21125 11.9056 -7.1665 11 -.982 43.251 27.933

TABLE 8-2

STAGE 2 COMSTAIT LOAD SHEAR REGRESSION DATA, P-POLYMER

The regression model used is of the form log Y - a + b(log X)where X - shear stress and Y - time to failure.

TEST PHASE BAge 1 min 100 min(me) Lot Motor Intercept Slope n r Stress Stress

2 64 AA21417 13.2989 -7.9395 12 -.960 47.319 26.4935 65 AA21383 13.9332 -8.7228 10 -.971 39.568 23.33816 63 AA21367 8.69682 -5.3406 12 -.950 42.505 17.94521 61 AA21322 13.2364 -8.5704 12 -.947 35.029 20.46822 62 AA21329 14.7193 -3.7807 12 -.950 47.460 21.09128 57 AA21223 17.4790 -10.932 8 -.924 39.054 25.67737 51 AA21105 14.8923 -9.0240 12 -.972 44.693 26.83237 54 AA21137 13.6749 -8.3396 12 -.921 42.656 24.63738 56 AA21189 14.3535 -3.9330 12 -.982 46.001 27.471

TEST PHASE C

13 67 AA21465 19.9178 -11.331 12 -.958 57.253 38.13214 66 AA21462 11.8533 -6.9955 12 -.871 49.561 25.65913 71 AA21573 11.5156 -6.6743 11 -.925 53.133 26.65117 60 AA21522 18.7595 -11.196 11 -.979 47.375 31.39919 70 AA21559 12.0937 -6.3629 11 -.929 57.835 29.56423 68 AA21493 16.7533 -9.6245 11 -.995 55.107 34.15140 64 AA21436 11.1034 -6.5490 11 -.934 49.595 24.55041 61 AA21306 12.2860 -7.5230 12 --.955 42.860 23.24845 63 AA21360 10.1430 -6.6027 11 -.955 34.430 17.14145 65 AA21389 11.2362 -6.4823 11 -.921 54.120 26.59746 62 AA21343 12.5891 -7.8257 11 -.966 40.615 22.54848 57 AA21211 11.5756 -7.3380 12 -.977 37.800 20.13160 51 AA21101 13.7674 -8.6801 12 -.980 38.555 29.57261 54 AA21140 13.3955 -8.2475 11 -.984 42.067 24.06865 56 AA21173 10.8979 -6.1682 11 -.923 58.451 27.704

TEST PIASE D

20 72 AA21588 16.1153 -9.6000 11 -.970 47.723 29.53922 71 AA21573 10.7962 -6.5785 11 -.939 43.764 21.73238 69 AA21547 13.1198 -8.1812 11 -.995 40.17 22.86640 70 AA21557 14.7159 -9.1255 l,. -.989 40.985 24.74342 66 AA21460 14.9358 -8.9486 11 -.965 46.672 27.89742 67 AA21466 14.1850 -8.2125 11 -.993 53.364 30.45946 68 AA21499 12.3799 -7.7255 11 -.991 40.038 22.05967 61 AA21328 9.40389 -6.3683 11 -.993 30.023 14.56867 64 AA21420 12.2083 -7.7312 11 -.985 37.940 20.91269 63 AA21363 11.7702 -7.2822 11 -.992 41.332 21.S61

r%:-m8-3

TABLE 8-2 (cont)

STAGE 2 COfSTAIT LOAD SHEAR REGRESSION DATA, P-POLYMER

TEST PHASE D

Age 1 min 100 min

70 62 AA21345 11.2601 -7.1446 11 -.967 37.673 19.774

70 65 AA21388 10.2403 -6.6128 11 -.944 35.364 17.625

76 57 AA21201 12.8670 -7.9301 11 -.981 41.933 23.461

81 53 AA21070 12.3556 -7.6964 11 -.977 40.306 22.157

37 51 AA21086 11.1299 -6.9617 11 -.981 39.695 20.486

90 56 AA21181 12.3432 -7.3275 11 -.979 48.364 25.797

91 54 AA21083 12.5761 -7.7672 11 -.989 41.604 22.993

TABLE 8-3

STAGE 2 CONSTATT LOAD TENSILE REGRESSIOM DATA, G-POLYMER

The regression model used is of the form log Y - a + b(log X)

where X - stress at rupture and Y - time to failure.

TEST PHASE BAge I min 100 min

26 60 AA21288 13.7487 -6.8986 12 -.871 98.391 50.471

27 59 AA21256 17.9335 -9.6728 11 -.936 71.450 44.335

28 58 AA21249 18.8035 -10.238 12 -.922 68.644 43.778

36 55 ;A21133 22.3898 -12.392 12 -.953 64.093 44.199

TEST PILASE C

41 60 A%21317 22.0597 -13.145 12 -.982 47.668 33.580

45 58 AA21248 12.9768 -6.9177 12 -.737 75.143 38.617

45 59 AA21256 14.7715 -8.0956 12 -.815 66.776 37.807

53 53 AA21062 19.3288 -11.090 12 -.980 55.316 36.519

55 52 AA 21036 14.3414 -8.7223 8 -.836 44.078 25.997

55 55 AA21128 20.7283 -11.669 12 -.949 59.751 40.267

56 52 AA21024 19.0582 -11.354 12 -.963 47.699 31.795

TEST PHASE D

70 60 ,A21295 20.2605 -11.836 11 -.987 51.499 34.899

71 59 AA21283 22.8699 -13.552 11 -.991 48.703 34.672

80 58 AA21210 19.0608 -10.831 11 -.956 57.525 37.601

82 52 AA21048 16.4537 -9.8669 11 -.994 46.511 29.165

83 55 AA21121 17.2319 -10.533 11 -.963 43.251 27.933

TABLE 8-4

STAGE 2 CONSTANT LOAD TENSILE REGRESSION DATA, P.-POLYmER

The regression model used is of the form log Y = a + b(log X)

where X - stress at rupture and Y - time to failure.

TEST PHASE BSArqe 1 min 100 min

(mo) Lot Motor Intercept Slope n_ r Stress Stress

14 56 AA21166 22.2074 -12.675 10 -.833 56.509 39.294

14 64 AA21420 10.7429 -5.4052 12 -.802 97.171 41.449

17 65 AA21393 18.5944 -10.301 12 -.927 52.661 34.382

29 63 AA21360 18.4521 -10.654 12 -.944 53.947 35.014

22 62 AA21337 19.8863 -11.258 12 -.953 58.398 33.792

24 61 AA21305 16.3522 -9.1211 12 -.821 62.058 37.457

35 54 AA21156 27.0012 -15.383 12 -.955 56.925 42.197

39 51 AA21094 23.0185 -12.893 12 -.852 61.006 42.682

TEST PIASE C

14 69 AA21547 16.6397 -8.9140 11 -.734 73.569 43.886

16 67 AA21448 18.0061 -10.066 12 --.979 61.499 38.920

16 71 A21381 12.6581 -6.1827 11 -.369 111.51 52.947

17 66 k21441 18.6003 -10.044 12 -.931 71.100 44.95223 70 AA21531 12.7410 -6.1702 10 -.601 116.13 55.055

30 63 AA21459 14.6537 -8.5349 11 -.857 52.108 30.379

40 61 AA21326 25.1976 -14.309 12 -.923 57.679 41.806

42 64 AA21417 22.9380 -12.465 11 -.962 69.216 47.836

44 65 AA21404 17.0212 -9.8910 10 -.92Q 54.335 33.012

47 62 AA21329 18.3478 -9.5702 11 -.954 82.637 51.073

50 57 AA21194 24.6502 -13.894 12 -.925 59.456 42.682

60 51 AA21084 23.0903 -13.139 12 -.939 57.191 40.283

61 54 AA21148 24.3077 -14.062 11 -.957 53.513 38.583

64 56 AA21184 15.9249 -8.6167 11 --.893 70.492 41.308

TEST PHASE D

38 67 AA21487 14.6186 -7.3336 11 -.875 98.481 52.558

41 69 AA21525 20.4166 -11.322 11 -.911 68.237 45.119

43 65 AA21568 19.5928 -10.586 11 -.945 70.923 45.905

43 68 AA21516 12.4913 -6.1117 11 -.947 110.62 52.072

46 66 AA21442 19.2808 -10.440 11 -.912 70.288 45.217

64 63 AA21379 13.0038 -6.8487 11 -.771 79.201 40.430

66 64 AA21433 17.4392 -9.2558 11 .-.897 76.583 46.56469 61 AA21310 17.0889 -10.125 11 -.932 43.732 30.923

69 65 AA21401 14.2516 -8.2269 11 -.913 53.939 30.846

71 62 AA21333 12.5348 -7.5253 11 -.938 46.306 25.112

76 57 AA21215 20.2346 -12.234 11 -.942 45.080 30.93982 53 AA21057 16.7398 -9.8964 11 -.962 49.148 30.861

- -8 - 6

TABLE 8-4 (cont)

STAGE 2 COISTANIT LOAD TENIULE REGRESSION DATA, P-POLYMER

TEST PHASE DAe 1 min 100 min(mo) Lot Motor Intercept SloRe n r Stress Stress

85 51 AA21098 13.2229 -7.9487 11 -.910 46.083 25.31389 54 AA21109 13.0395 -7.8006 11 -.950 46.945 26.01492 56 AA21166 12.1908 -6.9698 11 -.973 56.118 28.983

TABLE 8-5

STAG.E 3 CO';STA:IT LOAD SHEAR REGRESSION DATA, P-POLYMER

The regression model used is of the farm lov Y -a + b(log X)

where X shear stress and Y -tine to failure.

TIST PHASE 3Age 1 min 100 min(no) Lot Motor Intercept Slp n r Stress Stress

19 321 8210041 13.1099 -7.6326 7 -.970 52.194 28.54923 320 8200023 14.6180 -8.5933 8 -.985 50.130 29.34226 819 8190028 13.5860 -8.0018 8 -.994 49.872 28.04931 713 7130034 14.3034 -8.3827 8 -.987 50.852 29.35733 711 7110051 8.41972 -5.2072 8 -.577 41.394 17.094

TEST PHASE 4

13 823 8230017 16.4565 -9.6976 12 -. 989 49.771 30.95518 822 8220007 13.4967 -3.0035 9 -. 987 48.568 27.31942 724 7240048 10.2445 -6.4912 8 -. 982 37.863 18.626

TEST PHASE 5

36 713 7130044 15.5476 -9.1274 10 -. 967 50.513 30.49840 712 7120045 9.62801 -6.0349 12 -. 995 39.390 18.36444 711 7110035 12.2809 -7.2918 12 -. 981 48.328 25.699

TEST PHASE 6

14 824 8240032 17.7952 -10.553 12 -. 901 48.555 31.38519 823 8230028 21.1021 -12.296 12 -.959 52.025 35.77329 821 8210034 13.4603 -7.9625 12 -.987 49.029 27.49733 820 8200030 12.8859 -7.7398 12 -.972 46.226 29.497

U37 319 8190016 8.96705 -5.3234 12 -.767 48.359 20.360

TEST PHASE 7

17 825 8250011 13.0841 -7.5484 12 -.965 54.121 29.404q44 819 8190011 15.5395 -9.3563 12 -.977 45.798 27.996

43 713 7130002 13.1199 -8.0411 12 -.984 42.815 24.14855 711 7110013 11.0243 -6.5053 12 -.975 49.515 24.39556 712 7120003 15.5304 -9.3667 12 -.973 45.503 27.83057 724 7240054 11.8401 -7.3638 12 -.993 40.539 21.69183 712 7120013 16.4070 -9.8625 11 -.987 46.086 28.892

V91 724 7240054 8,37928 -7.0650 11 -.966 29.108 11.343

TABLE 8-5 (cont)

STACE 3 CONSTAIT LOAD SHEAR REGRESSIO:7 DATA. P-POLYMER

TEST PIASE 3Age 1 min 100 min(mo) Lot Motor Intercept Slope n r Stress Stress

2 20 326 8260007 21.6037 -12.380 11 -.897 47.565 33.26631 324 8240028 16.8152 -10.020 11 -.978 47.666 30.10337 823 8230008 20.5001 -12.112 11 -.972 49.265 33.68342 822 8220014 9.91603 -6.3139 11 -.626 37.198 17.93751 820 8200010 15.9720 -9.6165 11 -.992 45.803 28.374

TEST PHASE 9

17 827 8270011 18.4103 -11.003 11 -.981 47.127 31.00927 825 8250044 17.1948 -10.095 11 -.975 50.511 32.00851 821 8210025 14.4212 -8.5362 11 -.980 48.912 28.513

U 60 819 31Q0006 12.6020 -7.5430 11 -.994 46.846 25.44164 713 7130002 13.5782 -8.3439 7 -.983 42.394 24.41370 712 7120013 11.5089 -7.3055 11 -.973 37.616 20.02671 711 7110009 11.8551 -7.4025 11 -.995 39.948 21.445

TEST PHASE A

31 326 8260015 16.8348 -9.7178 11 -.987 53.997 33.61744 324 8240015 15.4307 -3.9740 11 -.985 52.413 31.37753 322 8220027 12.0410 -7.2048 11 -.988 46.907 24.75463 320 8200002 11.9315 -6.9638 II -.989 51.539 26.61678 724 7240048 -.11147 -.26039 11 -.011 .37317 +.8E-9

TEST PHASE B

30 327 8270015 15.8682 -9.5560 11 -.910 45.767 28.26544 325 8250022 20.1053 -12.027 10 -.951 46.961 32.02156 823 8230008 18.5872 -11.022 11 -.977 48.575 31.98564 821 8210034 12.8413 -7.7737 11 -.999 44.864 24.80971 319 8190038 11.9626 -7.1999 11 -.996 45.868 24.19582 711 7110051 12.0442 -7.3969 11 -.977 42.490 22.793

TEST PHASE C

45 826 8260007 16.4749 -9.8431 11 --.974 47.179 29.55052 825 8250013 19.5806 -11.705 11 -..972 47.085 31.77065 822 8220036 13.8631 -8.2141 11 -.997 48.722 27.81375 820 8200023 13.4959 -8.1893 11 -.990 44.462 25.338

TABLE 8-5 (cont)

STAGE 3 CONSTANT LOAD SHEAR REGRESSION DATA, P-POLYMER

TEST PHASE D

Age 1 min 00 m

63 824 8240023 13.2894 -7.6100 11 -.969 55.760 30.444

67 823 8230028 15.2913 -8.8622 10 -.987 53.142 31.605

77 821 8210019 10.9339 -6.4095 11 -.992 50.803 24.766

84 819 8190038 11.4046 -6.7231 11 -.988 49.696 25.052

39 713 7130005 9.98445 -5.9224 11 -.967 48.515 22.293

96 711 7110040 10.4116 -6.3070 11 -.997 44.752 21.563

•8 -1i0

TABLE 8-6

STA(; 3 CONSTANT LOAD TENSILE REGRESSION DATA. P-POLYMER

The regression model used is of the form log Y = a + b(log X)where X - stress at rupture and Y = time to failure.

TEST PHASE 3Age 1 min 100 min(no) Lot Motor Intercept Slone n r Stress Stress

21 821 8210003 13.1818 -6.2723 8 -.422 126.36 60.63726 820 8200002 38.2547 -20.942 8 -.885 67.092 53.84829 819 8190001 15.8395 -7.9918 8 -.843 95.937 53.91732 713 7130005 20.2442 -10.700 8 -.991 77.965 50.69337 712 7120008 19.6676 -10.424 8 -.968 77.038 49.52338 711 7110035 16.8353 -8.4005 8 -.718 100.95 58.345

TEST PHASE 4

15 823 8230002 26.1409 -13.923 9 -.976 75.309 54.10718 822 8220022 19.5167 -10.212 10 -.950 81.488 51.91044 724 72'0038 1Q. 98 56 -11.558 12 -.985 53.595 35.932

TEST PTIA9E 5

38 713 7130005 20.8163 -1.27 12 -.941 69.594 46.29641 712 7120016 12.7292 -6.q208 12 -.333 69.066 35.50445 711 7110009 17.1434 -9.5384 12 -.892 62.705 38.692

TEST PHASE 6

18 824 8240007 18.1508 -9.3510 12 -.940 87.310 53.35621 823 8230021 22.1575 -11.484 12 -.948 84.987 56.91231 821 8210015 31.6598 -16.991 12 -.950 72.994 50.66535 820 8200014 19.1153 --10.265 1- -.854 72.82C 46.49540 819 8190001 23.8491 -12.517 12 -.957 80.428 55.669

TEST PHASE 7

16 825 8250022 16.7463 -8.6629 11 -.822 85.725 50.378

I 43 819 8190038 18.1624 -9.9765 12 -.966 66.147 41.691

48 713 7130018 19.8043 -10.159 12 -.822 88.999 56.56250 712 7120036 15.0582 -7.9836 12 -.951 76.936 43.21355 711 7110048 15.7529 -8.4999 12 -.807 71.333 41.4-9557 724 7240019 16.9016 -10.005 12 -.974 48.895 30.358

8 - ii

RD-R120 429 PROPELLANT SURVEILLANCE REPORT RNB-3866 PROPELLNT(U)

3/3OGDEN AIR LOGISTICS CENTER HILL AR UT PROPELLANTANALYSIS LAB E M DALRBA RUG 82 MANPAl-473(82)

UNCLASSIFIED F/G 21/9. 2 L

lu ALL1.05

MICROCOPY RESOLUTION TEST CHARTJ

MICROCOPY RESOLUTION TEST CHART NATIONAL BUREAU OF STANDARDS- 1963-A

NATIONAL BUREAU OF STANDARDS 963-A !

1111 11I1i1if

-2 5 11111_ -- -

11111 11111 liiii'

MMICROCOPY RESOLUTION TEST CHARTNATIONAL BUREAU OF STANDARDS-

1963-A

Ji 1.01. ~f 2

L 3366

t4 1.8

114 11111.25 1.66

MICROCOPY RESOLUTION TEST CHART NATIONAL BUREAU OF STANDARD-963-A

NATIONAL BUREAU OF STANDARNN B1963-A

TABLE 8-6 (cont)

STAGE 3 CONSTANT LOAD TENSILE RECRESSIONI DATA, P-POLYMER

TEST PHASE 8Age I min 100 min

(mo) Lot Motor Intercept _Slope n r Stress Stress

M 16 826 8260032 17.1240 -8.3007 11 -.902 88.257 52.299

29 824 8240042 13.6739 -6.3911 11 -.837 96.610 49.521

35 823 8230031 18.0888 -9.5898 11 -.942 76.959 47.611

41 322 8220030 17.9088 -9.4096 11 -.864 80.029 49.056

49 320 8200037 16.9598 -8.6612 11 -.969 90.811 53.361

TEST PHASE 9

17 327 8270017 15.3113 -7.7680 11 -.843 93.555 51.713

33 825 8250013 12.3859 -6.5158 11 -.782 94.980 46.343

53 821 8210009 17.9556 -9.4548 11 -.934 79.269 43.705

60 319 3190021 22.4346 -12.313 11 -.937 66.368 45.660

66 712 7120045 16.9328 -9.9502 11 -.985 50.321 31.678

71 711 7110040 26.3446 -14.385 11 -.961 67.382 49.249

TEST PHASE A

26 826 8260041 16.8034 -8.7733 11 -.746 82.278 48.677

45 824 8240023 15.7004 -7.9573 11 -.670 9 3 .q9 0 52.692

51 822 8220045 20.7236 -11.146 11 -.916 72.318 47.843

63 820 8200021 16.2570 -7.9983 11 -.798 107.79 60.606

82 724 7240019 10.6739 -6.5243 11 -.871 43.254 21.354

TEST PHASE B

30 827 8270013 28.2432 -15.092 11 -.953 74.363 54.807

42 825 8250037 21.7257 -11.168 11 -.978 88.159 58.370

56 323 8230017 24.1691 -12.654 11 -.925 81.273 56.481

65 821 8210015 25.6292 -13.542 11 -.984 78.097 55.583

74 819 8190016 22.7572 -12.400 11 -.937 63.432 47.203

84 711 7110013 21.8461 -12.110 11 -.992 63.681 43.536

TEST PHASE C

40 826 8260036 22.7023 -11.555 11 -.952 92.191 61.888

50 825 8250025 21.3375 -11.372 11 -.961 75.210 50.166

67 822 8220022 16.7785 -8.6984 11 -.871 84.903 50.003

76 820 8200014 21.1417 -11.610 11 -.932 66.209 44.530

3 86 712 7120029 17.7009 -9.7182 11 -.947 66.284 41.267

92 724 7240043 15.4176 -9.4967 11 -.965 42.021 25.874

8 - 12

TAgLE 8-6 (cont)

STAGE 3 CONSTANT LOAD TENSILE REGRESSIO'l DATA. P-POLYMER

TEST PHASE DAge 1 min 100 min(mo) Lot Motor Intercept Slope n r Stress Stress

60 824 8240042 27.2071 -14.777 11 -.969 69.375 50.79969 323 8230002 26.6223 -14.521 11 -.984 68.135 49.61879 821 8210003 18.6244 -9.7026 11 -.964 83.084 51.68886 819 8190006 22.2807 -12.643 11 -.983 57.849 40.18938 713 7130036 20.2615 -11.584 11 -.974 56.123 37.71296 711 7110013 17.9223 -9.9707 11 -.974 62.737 40.272

. 8 -13

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8 - 14

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8 - 15

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8 - 16

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8 - 17

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8 - 21

TABLE 8-7

r !."/LTIPLE REGRESSION DATA FOR CONSTANTLOAD SHEARI AID CONSTANT LOAD TENSILE TESTS

The regression model used is of the form log Y = a + bilog X1 + b2X2where Y = failure time in minutes, X1 = stress in psi, and X2 = age inmonths.

Multiple Regression Data

Stage 2 Stage 3

Shear Tensile Shear Tensile

a 11.598 17.857 14.267 18.967

bj -6.7647 -9.5112 -8.1641 -9.5285V

b2 -0.0098532 -0.018132 -0.010473 -0.021174'

N 562 585 519 519

S(X 2)2 1584026 1632940 1632850 1652971

Y2 2663o 28004 26928 26999

fe 0.73635 0.83416 0.71579 0.95210

r2 0.68456 0.69560 0.75344 0.61229

K 1.712 1.711 1.715 1.715

8 - 221W

K CMP.~1. ive Percent Casebond 7'ailure During Transncortat"'on

CHR I 1.~~

S. 0 1 r

*00001

.000001 - - - - - - - - - -- - - -

0 2 4 6 8 10 12 14. 16 18 20 22

w AMe in Years

8 - 23

CHIART 2. Five Percent Casebond Failure During Booster Flirht.carton testing indicates a five Dercent Drobability of failureiP' the indicated psi- alert load limits are sustained for thetime corresponding to a selected ae.

100 - - - -- 1- -

C!{A32T 3. Five Percent Casebond Failure During Storage. Carton~testing indicates a live percent probability of failure if theindicated Dsi alert load hr jts are sustained for the timecorrespondinc to a selected are.

.001 - - - - - - -- - -

0 2 4 6 8 10 12 14. 16 18 20 22Age in Years

8 - 25

CHART 4. Fifty Percent Casebond Failure During Transportation.and Handlinp. Carton testing indicates a fifty percentprobabilitr of failure if the indicated psi alert limits a.resustained for the time corresnonding to a selected age.

100 ----------------------------

.. .01

.0001 - _ _ _ _ _ _ _ _ _ _ _ _ _

.00001 - - - - - - - - - - - - -0 2 I. 6 8 10 12 14. 16 18 20 22

Age in Years

8 - 26

C'WRT 5. Fifty Percent Casebond Failure During 3ooster 71:ht.Carton testinr indicates a '1if-tv percent p~robabi!4t. or ra-i..ure7the indicated Ds,- alert load limits are sustaine' or tte

time corresnondin7 to a selected aCe.

.01 - -

.001 - -

.0001 - - - - - - - - - - -- -0 2 1 6 8 10 12 14. 16 l8 20 22

Age in Years

8 - 27

CHART 6. F'ifty 'Percent Casebond Failure Durinr Z-torare. Cartontestinpg indicates a fifty noercent. probability of failure if theindicated nsi alert load li-qits are sustained for the ti.rIecorres-pondinC to a selected are.

100000 --

10000A-l

0 8 1 1 6 8 20 2

Ag1n er

TABLE 8-8

ADDITIONAL STAGE II LINER BOND TEST DATA

*?Iini-DPT PercentMotor Age Max Time InsulationNumber Lot (mo) Swell Ratio Gel Filler Stress to Max Moisture

AA21034 052G 82 2.019 2.034 .588 251.91 2.268 1.102AA21048 052G 81 1.899 1.872 .500 53.62 .232 1.094AA21057 053P 80 1.935 1.978 .515 353.16 3.409 1.057AA21070 053P 80 1.720 1.700 .624 267.38 2.172 .985AA21442 066P 45 1.621 1.739 .615 63.83 .047 1.059

AA21460 066P 42 1.726 1.696 .679 395.64 3.087 .879AA21466 067P 41 1.792 1.806 .689 97.20 .118 1.330AA21487 067P 37 1.617 1.699 .677 86.23 .065 1.145AA21573 071P 21 1.616 1.581 .663 383.02 3.095 .974AA21535 071P 19 1.756 1.701 .706 385.48 3.087 .894

AA21538 072P 19 1.723 1.698 .714 86.47 .128 .832AA21590 072P 17 1.699 1.681 .696 80.49 .126 1.035AA21036 051P 86 1.979 1.906 .612 60.39 .264AA21098 051P 84 1.710 1.647 .515 47.45 .351AA21121 055G 82 1.833 2.000 .553 42.74 .180

AA21125 055G 82 1.920 1.855 .552 41.25 .209AA21201 057P 75 2.039 2.000 .573 49.60 .149AA21215 057P 74 1.386 1.835 .621 48.94 .199AA21260 059G 71 2.200 2.410 .408 20.97 .670AA21283 059G 70 1.747 1.671 .570 53.50 .490

AA21295 060G 69 1.890 1.978 .549 47.59 .109AA21321 060G 67 2.120 2.320 .456 28.14 .064AA21310 061P 68 1.798 1.848 .564 45.68 .222AA21328 061P 66 1.942 2.000 .504 41.30 .366AA21083 054P 90 1.798 1.848 .622 .618 62.40 .188 1.504

AA21109 054P 88 1.942 2.000 .603 .624 46.31 .256 1.417AA21179 058G 81 1.718 1.757 .589 .646 70.36 .096 1.165AA21210 058G 79 1.820 1.832 .658 .633 56.42 .172 1.143AA21333 062P 70 1.934 1.895 .647 .651 47.95 .397 1.343AA21345 062P 69 1.905 1.743 .597 .678 52.68 .187 1.102

AA21363 063P 68 1.783 1.827 .562 .573 56.41 .239 1.097AA21379 063P 62 1.875 1.901 .685 .686 57.33 .295 1.085AA21499 068P 45 1.765 2.085 .670 .696 66.69 .327 .994AA21516 068P 42 1.800 1.838 .692 .694 77.46 .122 2.129AA21525 069P 40 1.770 1.778 .624 .636 57.29 .069 1.053

AA21547 069P 37 1.829 1.833 .606 .689 73.36 .074 1.053

The mini-OPT data entries are means of four except as indicatedby superscript.

8 - 29

TABLE 8-9

ADDITIONAL STAGE III LINER BOND TEST DATA

*Mini-DPTMotor Age Max Time % InsulationNumber (ma) Swell Ratio Gel Filler Stress To Max Moisture

7110013 82 1.813 1.828 .603 .620 67.90 .222 1.16647110051 80 1.942 1.805 .641 .755 69.51 .069 .889

8190016 70 1.888 1.928 .625 .607 71.63 .075 .9838190038 69 1.910 1.840 .618 .581 65.58 .157 .9958210015 63 1.610 1.778 .627 .619 84.76 .065 1.031

8210034 62 1.900 1.878 .637 .591 77.70 .052 .952148230008 54 1.782 1.714 .598 .657 94.75 .069 1.011

8230017 54 1.717 1.762 .649 .645 75.38 .054 .8998250022 42 1.696 1.762 .635 .614 78.98 .062 .9918250037 40 1.634 1.810 .643 .659 84.45 .067 .976

8270013 28 1.792 1.811 .661 .644 77.95 .054 1.13808270015 28 1.792 1.832 .628 .603 63.84 .084 .857

7240043 90 1.830 1.821 .545 .565 32.09 .222 .907 .9277240054 90 2.413 2.014 .510 .647 40.04 .265 .849 .3057120013 86 1.683 1.699 .682 .694 85.19 .107 1.208 1.108

7120029 84 1.961 1.677 .623 .633 77.36 .222 .696 .6988200014 74 1.757 1.844 .666 .686 76.24 .234 .994 1.0698200023 73 1.845 1.743 .656 .636 78.99 .194 .948 .9408220022 65 1.730 1.810 .723 .711 74.51 .162 1.078 .9228220036 63 1.631 1.644 .619 .607 77.52 .174 .927 .955

8250013 50 1.527 1.722 .686 .689 83.09 .117 .964 .9108230025 48 1.718 1.764 .663 .681 68.29 .184 1.102 1.0288260007 44 1.717 1.674 .632 .674 75.60 .157 .915 .9308260036 40 1.820 1.706 .674 .685 93.39 .102 .995 .9977110013 95 1.739 1.736 .629 .613 71.92 .221 1.032

7110040 94 1.830 1.920 .574 .583 65.91 .165 .9417130005 88 1.820 1.742 .681 .733 63.73 .138 1.0507130036 86 1.870 2.010 .588 .559 60.73 .256 .8238190006 85 1.857 1.913 .632 .606 61.10 .224 .950r8.190038 83 1.733 1.745 .625 .618 67.22 .154 .980

8210003 77 1.615 1.606 .649 .687 81.94 .0608210019 76 1.768 1.800 .650 .644 75.26 .162 1.1608230002 68 1.785 1.776 .642 .634 74.32 .0688230028 66 1.788 1.760 .655 .644 88.88 .0648240023 62 1.918 1.927 .606 .534 87.12 .049 .990

8240042 59 1.766 1.835 .679 .656 72.55 .074 1.811

*The mini-DPT data entries are composed of means of four.

8 - 30

TABLE 8-10

REGRESSION ANALYSIS PARAMETERS FOR DATA OTHER THAN CONSTANT

LOAD SHEAR OR CONSTANT LOAD TENSILE

Intercept Slope t N EI:_Stage II ..

Swell Ratio, G-polymer 2.909395 -.012626 1.82 20 NS

Swell Ratio, P-polymer 1.651032 .002877 4.61 52 S

Gel Filler, G-polymer .032976 .006824 2.01 12 NS

Gel Filler, P-polymer .725352 -.001583 4.58 36 S

Mini-DPT, Sm, G-polymer 40.322525 1.138383 1.64 10 NS

Mini-DPT, Sm, P-polymer 95.446258 -.540248 5.71 26 S

Mini-DPT, Time to Max, G .790703 -.007090 0.68 10 NS

Mini-DPT, Time to Max, P .026747 .002972 3.97 26 S

% Insulation Moisture, G 2.111999 -.012211 0.72 4 NS

% Insulation Moisture, P .854690 .004330 3.78 20 S

Stage III

Swell Ratio 1.665063 .001927 2.56 72 S

Gel Filler .672911 -.000534 1.91 72 NS

Mini-DPT, Max Stress (Sm) 95.839019 -.330680 3.29 36 S

Mini-DPT, Time to Max --.012176 .002168 4.15 36 S

% Insulation Moisture 1.066853 -.001165 0.88 45 Ns

Note: S is significant and NS is not significant.

8 - 31

TABLE 8-11

TABLE 10. ANALISIS OF COVARIANCE RESULTS

Comparisons BetweenResidual Trend Line Trend LineVariances Slopes Elevations

Stage 2 P-polymer vs Stage 3Swell Ratio NS NS SGel Filler NS S NS?tini-DPT Maximum Stress NS NS SHini-DPT Time to Max Stress S NS S% Insulation Moisture NS S S

Stage 2 G-polymer vs P-polymerSwell Ratio S S SGel Filler NS S SMini-DPT M.aximum Stress NS S NSMini-DPT Time to Max Stress S NS NS% Insulation Moisture NS NS NS

Note: S means significantly different and NS means not significantlydifferent.

8 - 32

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SECTION IX

HARDNESS

Shore A durometer readings are taken on dogbone ends prior to ten-

sile testing. The 10 second readings are considered to be more accurate.

There is a significant increase in hardness for all three types of

lined cartons (Figures 9-4 to 9-6) and for ANB P unlined cartons (fig-

ure 9-2).

TABLE 9-1

HARDNESS

Shore A

System 10 sec Fgr

ANE G Unlined Sig dec 9-1ANB P Unlined Sig inc 9-2ANT P Unlined Sig dec 9-3ANE G Lined Sig inc 9-4I ANE P Lined Sig incE 9-5ANT P Lined Sig inc 9-6

TABLE 9-2

ANALYSIS OF COVARIAICE COMPARISON OF REGRESSIONSSHORE A 10 SECOND HARDIMSS

Lined Vs Unlined si,

ANB P-polymer Residual Variance SSlope SElevation S

ANB G-polymer Residual Variance SSlope SElevation S

ANT P-polymer Residual Variance SSlope :'sElevation NS

AM P Unlined Vs Ant P Lined Residual Variance SSlope SElevation S

G-Dolymer Vs P-polymer

AiB Lined Residual Variance "SSlope SElevation S

AIB Unlined Residual Variance SSlope S

Elevation S

AIB G Unlined Vs AM" P Unlined Residual Variance IsSlope NsElevation S

A-TB G Lined Vs ANT P Lined Residual Variance iS

Slope SElevation S

AUTB P-Dolymer Vs ANT P-polymer

Lined Residual Variance SSlone NSElevation S

Unlined Residual Variance SSlope SElevation S

NOTE: S means a significant difference and NS means not significant.

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DISTRIBUTIONNR

COPIES

OOALCMMWRBA 1MWRAM 1

DDC (TISIR) Cameron Station, Alexandria, VA 22314 2

SAMSO, Norton AFB, CA 92409 1Attn: Mr Sanford Collins, Bldg 562, Room 613

AFPRO, Aerojet, Sacramento, CA 95813 1

Aerojet Strategic-Propulsion Company - 1P.O. Box 15699C, Sacramento, CA 95813Attn: Mr. R. Kiefner for Mr. Stan Lake

AFRPL (MKPB) Edwards AFB, CA 93523 1

SAC (LGBM) Offutt AFB, NB 68113 1

U. S. Naval Ordnance Station, Indian Head, MD 20460 1M. E. Loman, Code 3012A4Air Launched Weapons BranchWeapons Quality Engineering Center

CPIA, Johns Hopkins University 1

Applied Physics LabJohn Hopkins Road, Laurel, MD 20810Attn: Mr. Ronald D. Brown

L - -I0 - 1

SECURITY CLASSIFICATION OF THIS PAGE (When Dot Entered)READ INSTRUCTIONSREPORT DOCUMENTATION PAGE BEFORE COMPLETING FORM

1. REPORT NUMBER -2. GOVT ACCESSION NO. 3. RECIPIENT'S CATALOG NUMBER

MANPA Report Nr 473(82) Lp,/O.,.4. TITLE (anmd Subtitle) 5. TYPE OF REPORT & PERIOD COVERED

Propellant Surveillance Report Test Results - Semi-AnnualANB-3066 Propellant 6. PERFORMING ORG. REPORT NUMBER

7. AUTHOR(@) S. CONTRACT OR GRANT NUMBER(s)

ELIZABETH 1. DALABA

9. PERFORMING ORGANIZATION NAME AND ADDRESS 10. PROGRAM ELEMENT. PROJECT, TASK

Propellant Analysis Laboratory AREA & WORK UNIT NUMBERS

Directorate of Maintenance0O-ALC Hill AFB, UT 84056

II. CONTROLLING OFFICE NAME AND ADDRESS 12. REPORT DATE

Airmunitions Management Division August 1982Directorate of Materiel Management 13. NUMBER OF PAG,.

00-ALC Hill AFB, UT 8405614. MONITORING AGENCY NAME & ADDRESS(If dilfferent from Controlling Office) IS. SECURITY CLASS. (of this report)

Unclassified

15&. OECLASSIFICATION, DOWNGRADINGSCHEDULE

16. DISTRIBUTION STATEMENT (of this Report)

Approved for public release, distribution unlimited

17. DISTRIBUTION STATEMENT (of the abstract ented )n Block 20, It diflerent from Report)

'IS. SUPPLEMENTARY NOTES

19. KEY WORDS Confinuv on reeerae side if neceserwy and identify by block number)

Solid PropellantMinuteman

20 ABSTRACT (Contlnue on revers side If necessary and Identify by block number)

',This report contains test results from LGM-30 F and G, Stage II and StageIII propellant. Data are shown in regression plots, special types of plots suchas those of gradient stress relaxation and constant loas testing. Occasionally,data are presented in Tabular form.

The differences between polymers used in the propellant are given in theanalysis of covariance tables. Graphically, the differences are most evident ingradient stress relaxation modulus.

DO JAN7 1473 10 - 2

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