ppfa-case-study
TRANSCRIPT
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Page 1Composite Progressive Ply Failure Analysis Test Case Plate with a Hole 19.03.2008
NEiNastran Composite Progressive Failure Test Case
Subject:Composite Progressive Ply Failure Analysis Test Case Plate with a Hole
References:Ref. 1: Failure Analysis Laminated Composite.pdf Ref. 2: NEiNastran Reference Manual
CAD geometry update:27.02.2008
FE Model update:17.03.2008
FE Model format:NEiNastran V9.2beta
Prepared by:Simone [email protected]
Checked by:Luca [email protected]
Filename:PPFA-case-study.pptx
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Page 2Composite Progressive Ply Failure Analysis Test Case Plate with a Hole 19.03.2008
Test Case Definition [Ref. 1]
Material Properties
Material Name
Cured PlyThickness
Elastic Moduli Strength Data
t mm (in)
E11GPa(msi)
E22GPa(msi)
G12GPa(msi)
[-]Xt MPa
(ksi)
XcMPa(ksi)
Yt MPa(ksi)
YcMPa(ksi)
ScMPa(ksi)
T300/1034-C0.131
(0.00515)146.9(21.3)
11.38(1.65)
6.185(8.97)
0.31731(251)
1379(200)
66.5(9.65)
268.2(38.9)
133.7(19.4)
Plate Geometry L = 8in (203.2mm)
W = 1in (25.4mm)
d = 0.25in (6.35mm)
dL
W
Layup Sequence and Total Thickness
Layup: [0 / (45) 3 / 90 3]s
Total n. of plies = 20
Total thickness = 0.103in (2.61mm)
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Page 3Composite Progressive Ply Failure Analysis Test Case Plate with a Hole 19.03.2008
Boundary Conditions and Literature Results [Ref. 1]
ConstrainedEdge
Y-enforced
motion edge
Load vs. Displacement Curve
Failure Model
First-ply-Failure Last-ply-Failure
N(lbf)
N(lbf)
Experimental Test -15670(3523)
Hashin6761
(1520)14290(3212)
Christensen6761
(1520)14510(3261)
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Page 4Composite Progressive Ply Failure Analysis Test Case Plate with a Hole 19.03.2008
NEiNastran PPFA Setup [Ref. 2]
E1RSF, E2RSF, G12RSF, G1ZRSF, G2ZRSF :Lamina stiffness reduction factors uponfailure
Bulk Data Card for non-linear composite ply behavior activation
Failure theory selection
Ply stiffnessreduction factors
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Page 5Composite Progressive Ply Failure Analysis Test Case Plate with a Hole 19.03.2008
NEiNastran PPFA Results and Literature CorrelationFailure Model
First-ply-Failure Last-ply-Failure
N N
Experimental Test [Ref. 1] - 15670
Hashin [Ref. 1] 6761 14290 (-8.8%)
Christensen [Ref. 1] 6761 14510 (-7.4%)
LaRC02 (NEiNastran) 6700 14017 (-10.5%)
Puck PCP (NEiNastran) 6700 13589 (-13.3%)
Tsai-Wu (NEiNastran) 6400 13166 (-16%)
Max. Stress (NEiNastran) 6600 17000 (+8.5%)
First-ply-failure(about 0.5mm)
Uy = 0.7mm U y = 0.8mm U y = 0.9mm
Uy = 1.0mm Uy = 1.1mm
Last-ply-failure(about 1.22mm)