dytran release guide

8142019 Dytran Release Guide

httpslidepdfcomreaderfulldytran-release-guide 134

Dytrantrade

2008 r1

Release Guide

Main Index



CorporateMSCSoftware Corporation2 MacArthur PlaceSanta Ana CA 92707Telephone (800) 345-2078FAX (714) 784-4056

EuropeMSCSoftware GmbHAm Moosfeld 1381829 MunichGERMANYTelephone (49) (89) 43 19 87 0Fax (49) (89) 43 61 71 6

Asia PacificMSCSoftware Japan LtdShinjuku First West 8F23-7 Nishi Shinjuku1-Chome Shinjuku-KuTokyo 160-0023 JAPANTelephone (81) (3)-6911-1200Fax (81) (3)-6911-1201

Worldwide Webwwwmscsoftwarecom

User Documentation Copyright copy 2008 MSCSoftware Corporation Printed in USA All Rights Reserved

This document and the software described in it are furnished under license and may be used or copied only in accordance with the

terms of such license Any reproduction or distribution of this document in whole or in part without the prior written authorization of

MSCSoftware Corporation is strictly prohibited

MSCSoftware Corporation reserves the right to make changes in specifications and other information contained in this document

without prior notice The concepts methods and examples presented in this document are for illustrative and educational purposesonly and are not intended to be exhaustive or to apply to any particular engineering problem or design THIS DOCUMENT IS

PROVIDED ON AN ldquoAS-ISrdquo BASIS AND ALL EXPRESS AND IMPLIED CONDITIONS REPRESENTATIONS AND WARRANTIES

INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE

DISCLAIMED EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD TO BE LEGALLY INVALID

MSCSoftware logo MSC MSC MD Adams Dytran Marc Mentat and Patran are trademarks or registered trademarks of

MSCSoftware Corporation or its subsidiaries in the United States andor other countries

NASTRAN is a registered trademark of NASA LS-DYNA is a trademark of Livermore Software Technology Corporation All other

trademarks are the property of their respective owners

Use duplication or disclosure by the US Government is subject to restrictions as set forth in FAR 12212 (Commercial ComputerSoftware) and DFARS 2277202 (Commercial Computer Software and Commercial Computer Software Documentation)

as applicable

DTV2008R1ZZZDC-REL

Main Index



C o n t e n t s

Dytran Release Guide

Contents

1 Introduction

2 Eulerian and Fluid-Structure Interaction (FSI)

Overview 8

Geometric Boundary Conditions for Eulerian Domain 9

Speed up of JWL and Blast Models by 1-D Spherical Symmetry Method11

Static Euler Output 12

BIAS Mesh Capability for Nonuniform Euler 16

Cohesive Friction 19

Other Enhancements and Bug Fixes 21

3 System Information

Software Installation 24

Licensing 25

Release Platforms 26

Memory Requirements 27

4 Using Dytran

Running Dytran on Windows 30

Running Dytran on Unix and Linux 31

Postprocessing Dytran Results 32

Postprocessing Dytran Results of Windows on UNIX 33

Main Index




4

Main Index



Chapter 1 IntroductionDytran Release Guide

1 Introduction

Main Index



Dytran Release Guide6

Dytrantrade 2008 r1 is the latest and most comprehensive version of Dytran released by MSCSoftware

bringing new simulation technology and improved performance

Dytran 2008 r1 is available on UNIX (HP-UX PA- RISC 20 HP-UX Itanium2 SGI R10KR12K IBMRS6000 (Power 4) Sun SPARC Solaris Solaris X64 Linux Itanium2 (Red Hat 3 Update 3) Linux

Itanium2 SGI Altix (SGI ProPack3 SP6) Linux X8664 (Red Hat 4 Update 5) Linux 32 (Red Hat 3

Update 9) Windows 32 bit (XP SP2) and Windows 64 bit (XP SP2) platforms Please see System

Information in chapter 3 for more details

Dytran 2008 r1 has many new powerful meshing technologies and capabilities in several key areas

resulting in higher degrees of robustness performance and ease-of-use These include

bull Geometric Boundary Conditions for Eulerian mesh which allows users to directly define flow

boundaries on the Eulerian domain faces by simply defining a vector or by defining a square

covering a number of Eulerian faces This facilitates using different mesh sizes in a model

without re-defining the boundary conditions

bull The new 1-D Spherical Symmetry Method dramatically speeds up the JWL and Blast

simulations by initializing the pressure wave in 1-D and then mapping the 1-D results into a 3-D

model The method eliminates the need to construct elaborated fine mesh to capture the initial

pressure wave propagationbull ldquoStaticrdquo archive output to facilitate the postprocessing of the adaptive Euler results which

normally requires multiple archive output files

bull Support for ldquoBIASrdquo capability for nonuniform MESH BOX option to add flexibility in defining

different mesh densities in and around the areas of interest

bull Cohesive friction capability to predict the viscous behavior of the material such as interaction of

mud and tire

The Dytran 2008 r1 online documentation is available in PDF format on all platforms The online

documentation includes the Reference Manual Theory Manual Userrsquos Guide Example Problem

Manual Release Guide and the Installation Instructions

Dytran uses the Macrovision FLEXlmtrade licensing system If you already have an MSCDytran 2007 r1

license you will not need to obtain a new authorization code to activate Dytran 2008 r1 on your

computer However you will need to install the latest FLEXlm 108 license server available on Dytran

installation CD The enclosed Dytran 2008 r1 Installation Instructions describe how to install Dytran

2008 r1 on your computer

If you need assistance while installing Dytran 2008 r1 please call the MSC Technical Support Hotline at

1-800-732-7284 or E-mail your support questions to mscdytransupportmscsoftwarecom

Main Index



Chapter 2 Eulerian and Fluid-Structure Interaction (FSI)


2Eulerian and Fluid-Structure

Interaction (FSI)

Overview 8


Speed up of JWL and Blast Models by 1-D Spherical Symmetry

Method 11





Main Index





9Chapter 2 Eulerian and Fluid-Structure Interaction (FSI)Geometric Boundary Conditions for Eulerian Domain

Geometric Boundary Conditions for Eulerian DomainFor many applications the Euler modeling can be simplified by using the MESH Generator entry

However this method has some shortcomings with regard to the definition of the boundary conditions at

the boundaries of the Euler meshes

In the past one had to create CFACES with Patran to define flow boundaries Since CFACES only support

CHEXArsquos the only way to define flow boundaries for MESHBOX was to define a PORFLOW entry and a

COUPLE entry Geometric Euler Boundary Condition entries allow to directly prescribing boundary

conditions on the boundaries of the Euler domain This functionality also supports Euler domains

consisting of CHEXArsquos Running the simulation with different mesh-sizes is much easier since the

creation of CHEXArsquos and CFACES by Patran can be avoided

The geometric boundary entries are FLOWDIR WALLDIR FLOWSQ and FLOWTSQ The first two allow the

assignment of a boundary condition to all Eulerian boundary faces pointing in a certain direction

FLOWDIR allows a general flow boundary condition whereas WALLDIR applies a WALLET boundary

condition The FLOWSQ and FLOWTSQ assign flow and time dependent flow conditions to all parts of

Eulerian boundary faces that are within a given square

Figure 2-1 Typical Example for Geometric Boundary Conditions for Euler

FLOW INXVEL = 20 msYVEL = 0 msSIE = 2E+5 JkgDENSITY= 13 k m3

Main Index



Dytran Release GuideGeometric Boundary Conditions for Eulerian Domain

10

Figure 2-2 Comparison between the Geometric BCs Method and Old Method by defining

GRIDs and CHEXAs

See Geometric Eulerian Boundary Conditions in the Example Problem Manual for more details

New model with Mesh and Geometric BC Old model with Grids and Chexarsquos

Main Index



11Chapter 2 Eulerian and Fluid-Structure Interaction (FSI)Speed up of JWL and Blast Models by 1-D Spherical Symmetry Method

Speed up of JWL and Blast Models by 1-D SphericalSymmetry MethodThe JWL and blast models requires very fine mesh to reach the correct peak pressure However once the

blast wave is sufficiently expanded there is no need for fine elements and it would be computationally

very efficient to replace the fine mesh with a much coarser mesh Furthermore the initial stages of the

explosion are spherically symmetric and allow the use of a 1-D model to predict the wave propagation

In this method the spherical initialization is done by constructing a 1-D model and results are remapped

on a first quadrant of a 3-D model The method results in significant improvements in simulation time

Figure 2-3 Radial Velocities Compared Between 3-D and 1-D Models

See Modeling the JWL Explosion using 1-D Spherical Symmtery in the Example Problem Manual for

more details

Comparison with 1-DRadial Velocity at cycle 1

Main Index

D t R l G id12



Dytran Release GuideStatic Euler Output

12

Static Euler OutputDuring a simulation with adaptive meshing the Euler mesh changes continuously and ldquoadapts itselfrdquo to

follow the coupling surface moves and deformations The Euler mesh adapts to the coupling surface by

adding and removing elements The adaptive algorithm ensures that the coupling surface is contained

inside the Euler mesh at all times with the minimum amount of elements

The adaptive Euler can save a lot of computational time but postprocessing can be a little tricky Since

the geometry can change at any cycle Euler archives contain only one cycle This makes postprocessing

with Patran cumbersome especially if one needs to postprocess several cycles Usually all one needs to

do is to have Dytran output results of all cycles in one big archive and read them into Patran This is not

the case with adaptive meshing Here one has to read in a separate archive for each cycle which makesanimation a difficult task For this purpose a postprocessor must have multi-model capability to

postprocess the multiple archives each having a different geometry simultaneously

A new functionally now allows easy postprocessing with Patran The user defines a box which consists

of virtual elements All adaptive elements completely inside the box are mapped onto matching virtual

elements making the virtual element real Virtual elements have grid points that are compatible with real

elements Therefore virtual and real element have the same geometry and user number but only the

adaptive elements have nonzero element values When a virtual element is written to output and if it hasa matching real element the values of the real element are written out The virtual elements that do not

have matching real element are written out with zeroes Since this box is fixed during the simulation the

Euler element geometry does not change Therefore archives written with this option can contain

multiple cycles and can be postprocessed by Patran In addition Patran can also animate the adaptive

mesh results This new functionality is activated by specifying the STATBOX entries on the MESH entry

The size of the box can be chosen freely but then adaptive element may be created that are outside of the

box The run will continue with a warning and no output will be written for elements that are outside In

general the box should be large enough to contain all adaptive elements that are created during the

simulation For an adaptive run the adaptive meshing summary in the OUT file lists the largest box that

surrounds all adaptive elements This box can be used to define the static output box This option does

not require a significant amount of CPU-time

The following figures demonstrate how an airbag is inflated by using the Static Euler Output As shown

there are many Euler elements that are created ldquostaticallyrdquo in cycle zero As the airbag is inflated and

adaptive mesh expands (cycle 219) the elements in the static mesh that interact with the adaptive mesh

are preserved for output while the rest are deleted during computation This allows postprocessing withonly one Euler arhive output

See Easy Postprocessing with Adaptive Meshing in the Example Problem Manual for more details

Main Index

13Chapter 2 Eulerian and Fluid Structure Interaction (FSI)



13Chapter 2 Eulerian and Fluid-Structure Interaction (FSI)Static Euler Output

Main Index



15Chapter 2 Eulerian and Fluid-Structure Interaction (FSI)



15Chapter 2 Eulerian and Fluid Structure Interaction (FSI)Static Euler Output

Main Index




yBIAS Mesh Capability for Nonuniform Euler

BIAS Mesh Capability for Nonuniform EulerA new capability allows the MESHBOX to create general nonuniform graded block meshes based on

arbitrary biased planes These meshes were traditionally constructed only by preprocessors such as

Patran A uniform Euler block consists of a number of planes in each direction These planes are located

at fixed distances MESH BOX has a new functionality that allows full control over the locations of the

planes This functionality is activated by defining BIAS entries and using them on the MESH entry The

BIAS entries specify the locations of the planes

The following figures demonstrates how a blast problem can be modeled using the BIAS Mesh

capability See Nonuniformity with MESHBOX in the Example Problem Manual for more details

Main Index




pBIAS Mesh Capability for Nonuniform Euler

Main Index

Dytran Release GuideBIAS M h C bilit f N if E l

18



BIAS Mesh Capability for Nonuniform Euler

Main Index

19Chapter 2 Eulerian and Fluid-Structure Interaction (FSI)C h i F i i



Cohesive Friction

Cohesive FrictionA new ldquoCohesive Frictionrdquo model is added to predict the behavior of viscous material For example the

new friction model can be used to simulate the cohesive behavior of wet soil that is in contact with a tireThe following figures shows a rigid wedge partially submerged in a viscous material In this example

the cohesive friction model is used to predict the viscous behavior of the material See Cohesive Friction

in the Example Problem Manual for more details

Main Index

Dytran Release GuideCohesive Friction

20



Cohesive Friction

Main Index

21Chapter 2 Eulerian and Fluid-Structure Interaction (FSI)Other Enhancements and Bug Fixes



Other Enhancements and Bug Fixes

Other Enhancements and Bug FixesThe following bugs are fixed in this release

bull 1-72372224 ndash Cannot retrieve a float variable TXX01 using a user subroutine

bull 1-69143252 ndash HYDSTAT does not work properly

bull 1-67976214 ndash Mesh card entry in Dytran deck

bull 1-67976131 ndash Error in Mesh card

bull 1-64706618 - Memory setting in Dytran Explorer (Not Dytran) as per last run

bull 1-62868391 - NONUNIFORM EULER by MESHbox is not WORKING when COUPLE with

Multidomain Eulerian problem (categorized as limitation)

bull 1-57518271 - FFCONTR does not work well with small and large format

bull 1-57368278 - PARAM VISCOPLAS is not documented in 2007r1

bull 1-56861171 - Default memory settings in Dytran Explorer can not be changed permanently

bull 1-56446245 - NZ overflow in outfile

bull 1-55355171 - DYMAT26 - Incorrect timestep calculation

bull 1-17295105 - DAREA leads to 0 load curve error

bull 1-52062841 - CPU Summary in OUT file can contain negative numbers and stars in case of big

jobs

bull 1-51315118 - The attached dytran deck runs to completion but the resulting arc file can not be

attached to Patan

bull 1-37820721 - dual cpu performance is not beeter than one cpu on linux (v2005r3)

bull 1-24739911 - More than 1024 entities for output request SET causes an Error

bull 1-24636316 - Unrealistic results with an axisymmetrical model

bull 1-23330751 - Error in Documentation Page 2-19

bull 1-20618137 - RJUNI test gives result that are unexploitable

bull 1-17418401 - Core Dump when putting BY 0 in SET (an ice impact model)

bull 1-12118649 - wrong results with prestress MATRIG and angular velocity

bull In Dytran2005r3 the friction algorithm was changed to fully model friction between metals Thefriction algorithms of Dytran2005 and earlier were more suited for friction between non-metals

(like soil) and the coupling surface To activate the old friction method PARAMCOUFRIC was

added Alternatively cohesive friction (PARAMCOHESION) may be used

bull Some airbag simulations may become instable Even using PARAMVELMAX may not help

Likely the instability is caused by blending geometry In these cases there is often a clump that

consists of too many elements and on average the uncovered volume in the clump is rather small

Depending on mass in the clump severe over compression work may occur This compression

Main Index

Dytran Release GuideOther Enhancements and Bug Fixes

22



g

work is given by the volume strain rate in the clump PARAMCLUFLIM was added that applies

a weight to this volume strain rate depending on the quality of the clumps This parameter can

make airbag simulation run stable just like VELMAX does It should only be used in case of

instability

bull In an impact analysis both impactor and target may be modeled by Eulerian material If the

target is a thick plate tensile stresses occur at the back of the plate To model the strength of the

plate correctly minor void friction has to be permissible under tensile loading The PMINC entry

was extended to specify this maximal permissible void fraction

bull PARAM VISCOPLAS was added

Main Index



Chapter 3 System Information




Licensing 25



Main Index

Dytran Release GuideSoftware Installation

24



Software InstallationOn the Windows platforms Dytran 2008 r1 is easily installed from CD-ROM as it uses the standard

Windows Installation Wizard On Unix and Linux platforms the MSCSoftware standard installationscript can be used to install the software on your system

Dytran 2008 r1 is the successor of Dytran 2007 r1

Main Index

25Chapter 3 System InformationLicensing



LicensingDytran uses the FLEXlm license manager as the licensing system for nodelock and network licensing

To run Dytran you need an authorization code from MSCSoftware Corporation If you already have alicense for MSCDytran 2007 r1 you do not need to obtain a new license for Dytran 2008 r1

However in all cases you do need a new installation of the license server software Specifically the

FlexFM license server needs to be at level 10 or higher For this purpose an installation of FlexLM

v1080 is part of this release on all supported platforms It is noted that Dytran 2008 r1 is not able to

check out licenses when the FlexLM server is lower than version 10

On Windows and Linux computers Dytran requires an Ethernet card on your computer even if your

computer is not connected to a network The FLEXlm licensing mechanism uses the Ethernet card to

create the unique system identification encrypted in the license information file

Main Index

Dytran Release GuideRelease Platforms

26



Release PlatformsDytran 2008 r1was built and tested on the following hardware with the listed software installed as given

in Table 3-1

Table 3-1 Supported Hardware Configuration

PlatformOperating

System Compiler VersionOpenMPSupport Remarks

Windows 32-bit Windows (XP SP2) Intel Compiler

V910331Yes Ethernet

Card

Windows 64-bit Windows (XP 64) Intel Compiler EM64TV911 Yes Ethernet

Card

SGI R10KR12K IRIX64 6527 MIPSpro f90 742 Yes NA

HP-UX PA-RISC 20 HPUX B1111 HP F90 V31 Yes NA

HP-UX Itanium2 HPUX B1123 HP F90 V287 Yes NA

Sun Sparc Solaris Solaris 10 Sun Studio 12 (Sun

Fortran 95 83

SunOS_sparc Patch

127000-01 20070718)

Yes NA

Solaris x64 Solaris 10 Sun Studio 12 (Sun

Fortran 95 83

SunOS_i386 Patch

127002-01 20070718)

Yes NA

IBM RS6000 (Power4) AIX 51 XL Fortran 91 Yes NA

Linux Itanium2 RedHat 3 Update 3 Intel Compiler 101012 Yes Ethernet

Card

Linux Itanium2 SGI Altix SGI ProPack 3SP6 Intel Compiler 101011 Yes Ethernet

Card

Linux X8664 RedHat 4 Update 5 Intel Compiler 101015 Yes Ethernet

Card

Linux 32 RedHat 3 Update 9 Intel Compiler 81026 Yes EthernetCard

1For correct operation of the Intel Fortran compiler MS Visual Studio NET 2005 must be installed

prior to installing the Intel 91 compiler Compiler versions of type Intel 91 will probably work

correctly For example Version 91037 works correctly for Windows 32

The following platform configurations are no longer supported as of V2008r1

HP Alpha Linux 32 RedHat9 (replaced by RedHat 3)

Windows 2000 Linux X8664 RedHat 3 (replaced by RedHat 4 Update 5)

Solaris 8 replaced by Solaris 10 IBM RS6000 Power3 (replaced by Power4)

Main Index

27Chapter 3 System InformationMemory Requirements



Memory RequirementsIn general the size of the memory required by Dytran depends on the size of the engineering problem

you wish to solve The default memory size is set to approximately 30MB This default size is appropriatefor smaller problems

You can change the preset default in the Dytran Explorer so that it fits your personal needs In addition

you can define the minimum and maximum memory size and use the slider in the front panel to select

the desired memory size On Unix and Linux platforms you can use the command-line option

(size=smallmediumlarge) or you can enter the MEMORY-SIZE definition in the input file

Dytran traces the usage of memory and prints a summary at the end of the output file of each analysis

The memory size listed in the summary is exact It reflects the memory required for storing the model in

core memory after one integration step Additional memory required during the analysis is automatically

allocated and de-allocated

When you change the memory setting for an analysis through the Dytran Explorer the settings are stored

to be used the next time that you run the analysis Under certain conditions Dytran may stop and issue a

message that it cannot allocate the required memory Since the memory allocation in Dytran is dynamic

the system may require additional memory during an analysis If the memory is available it is allocated

and de-allocated when it is no longer needed When your computer runs out of memory the Dytrananalysis may stop when it needs more memory to continue You may solve this problem by closing

applications on your computer that you do not need or you can decrease the size of the core memory that

Dytran allocates for the analysis if you are using substantially more than the analysis requires You can

find the information on the memory size requirements of the analysis in the memory summary at the end

of the analysis We recommend to use Dytran on a computer that has at least 256 MB of RAM

Main Index

Dytran Release GuideMemory Requirements

28



Main Index



Chapter 4 Using Dytran


4 Using Dytran





Main Index



31Chapter 4 Using DytranRunning Dytran on Unix and Linux



Running Dytran on Unix and LinuxOn Unix and Linux platform you would use the command line interface like

bull dytran jid=xxx to submit Dytran

Main Index

Dytran Release GuidePostprocessing Dytran Results

32



Postprocessing Dytran ResultsDytran results can be postprocessed with Patran With MSCPatran 2005 the Direct Result Access

(DRA) method is available for native Dytran output files (ARCTHS)

In addition on Windows you can use the VisualVrml postprocessing animation and Visual Time History

tool The tool is built-in inside the Dytran Explorer and offers web-based postprocessing capabilities

Main Index

33Chapter 4 Using DytranPostprocessing Dytran Results of Windows on UNIX



Postprocessing Dytran Results of Windows on UNIXIf you wish you can postprocess the analysis results obtained from a Windows platform on a UNIX

computer In this case you need to convert the binary result files (ARC andor THS) files to a UNIXformat You can perform this conversion by using the right-mouse button menu in the Dytran Explorer

Point your mouse at the file that you wish to convert click the right mouse button and select the Convert

to binaryhellip menu item The converted files will have the sb_ prefix For Compaq Alpha workstations

the native Windows result files can be used directly without conversion

Alternatively when running on windows you can select the option to output result files in UNIX format

by default To set this option select the Preferences from the Options menu Choose Formats and select

Convert output files automatically to UNIX-format If you select this option the regular Windows resultfiles and the converted UNIX-format files are written at the end of the analysis You can recognize the

UNIX-format files by the UX prefix

Main Index

Dytran Release GuidePostprocessing Dytran Results of Windows on UNIX

34



Main Index



CorporateMSCSoftware Corporation2 MacArthur PlaceSanta Ana CA 92707Telephone (800) 345-2078FAX (714) 784-4056

EuropeMSCSoftware GmbHAm Moosfeld 1381829 MunichGERMANYTelephone (49) (89) 43 19 87 0Fax (49) (89) 43 61 71 6

Asia PacificMSCSoftware Japan LtdShinjuku First West 8F23-7 Nishi Shinjuku1-Chome Shinjuku-KuTokyo 160-0023 JAPANTelephone (81) (3)-6911-1200Fax (81) (3)-6911-1201

Worldwide Webwwwmscsoftwarecom

User Documentation Copyright copy 2008 MSCSoftware Corporation Printed in USA All Rights Reserved

This document and the software described in it are furnished under license and may be used or copied only in accordance with the

terms of such license Any reproduction or distribution of this document in whole or in part without the prior written authorization of

MSCSoftware Corporation is strictly prohibited

MSCSoftware Corporation reserves the right to make changes in specifications and other information contained in this document

without prior notice The concepts methods and examples presented in this document are for illustrative and educational purposesonly and are not intended to be exhaustive or to apply to any particular engineering problem or design THIS DOCUMENT IS

PROVIDED ON AN ldquoAS-ISrdquo BASIS AND ALL EXPRESS AND IMPLIED CONDITIONS REPRESENTATIONS AND WARRANTIES

INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE ARE

DISCLAIMED EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD TO BE LEGALLY INVALID

MSCSoftware logo MSC MSC MD Adams Dytran Marc Mentat and Patran are trademarks or registered trademarks of

MSCSoftware Corporation or its subsidiaries in the United States andor other countries

NASTRAN is a registered trademark of NASA LS-DYNA is a trademark of Livermore Software Technology Corporation All other

trademarks are the property of their respective owners

Use duplication or disclosure by the US Government is subject to restrictions as set forth in FAR 12212 (Commercial ComputerSoftware) and DFARS 2277202 (Commercial Computer Software and Commercial Computer Software Documentation)

as applicable

DTV2008R1ZZZDC-REL

Main Index



C o n t e n t s


Contents

1 Introduction


Overview 8









Licensing 25



4 Using Dytran





Main Index




4

Main Index




1 Introduction

Main Index
























mud and tire











Main Index






Interaction (FSI)

Overview 8



Method 11





Main Index






















Main Index




10


GRIDs and CHEXAs



Main Index












more details


Main Index

D t R l G id12




12































Main Index





Main Index







Main Index













Main Index





Main Index


18




Main Index




Cohesive Friction





Main Index


20



Cohesive Friction

Main Index




















jobs


attached to Patan




bull 1-23330751 - Error in Documentation -19











Main Index


22



g




instability






Main Index







Licensing 25



Main Index


24






Main Index













Main Index


26




in Table 3-1


PlatformOperating



V910331Yes Ethernet

Card


Card





Fortran 95 83

SunOS_sparc Patch

127000-01 20070718)

Yes NA


Fortran 95 83

SunOS_i386 Patch

127002-01 20070718)

Yes NA



Card


Card


Card









Main Index























Main Index


28



Main Index





4 Using Dytran





Main Index








Main Index


32







Main Index













Main Index


34



Main Index



C o n t e n t s


Contents

1 Introduction


Overview 8









Licensing 25



4 Using Dytran





Main Index




4

Main Index




1 Introduction

Main Index
























mud and tire











Main Index






Interaction (FSI)

Overview 8



Method 11





Main Index






















Main Index




10


GRIDs and CHEXAs



Main Index












more details


Main Index

D t R l G id12




12































Main Index





Main Index







Main Index













Main Index





Main Index


18




Main Index




Cohesive Friction





Main Index


20



Cohesive Friction

Main Index




















jobs


attached to Patan















Main Index


22



g




instability






Main Index







Licensing 25



Main Index


24






Main Index













Main Index


26




in Table 3-1


PlatformOperating



V910331Yes Ethernet

Card


Card





Fortran 95 83

SunOS_sparc Patch

127000-01 20070718)

Yes NA


Fortran 95 83

SunOS_i386 Patch

127002-01 20070718)

Yes NA



Card


Card


Card









Main Index























Main Index


28



Main Index





4 Using Dytran





Main Index








Main Index


32







Main Index













Main Index


34



Main Index




4

Main Index




1 Introduction

Main Index
























mud and tire











Main Index






Interaction (FSI)

Overview 8



Method 11





Main Index






















Main Index




10


GRIDs and CHEXAs



Main Index












more details


Main Index

D t R l G id12




12































Main Index





Main Index







Main Index













Main Index





Main Index


18




Main Index




Cohesive Friction





Main Index


20



Cohesive Friction

Main Index




















jobs


attached to Patan















Main Index


22



g




instability






Main Index







Licensing 25



Main Index


24






Main Index













Main Index


26




in Table 3-1


PlatformOperating



V910331Yes Ethernet

Card


Card





Fortran 95 83

SunOS_sparc Patch

127000-01 20070718)

Yes NA


Fortran 95 83

SunOS_i386 Patch

127002-01 20070718)

Yes NA



Card


Card


Card









Main Index























Main Index


28



Main Index





4 Using Dytran





Main Index








Main Index


32







Main Index













Main Index


34



Main Index




1 Introduction

Main Index
























mud and tire











Main Index






Interaction (FSI)

Overview 8



Method 11





Main Index






















Main Index




10


GRIDs and CHEXAs



Main Index












more details


Main Index

D t R l G id12




12































Main Index





Main Index







Main Index













Main Index





Main Index


18




Main Index




Cohesive Friction





Main Index


20



Cohesive Friction

Main Index




















jobs


attached to Patan















Main Index


22



g




instability






Main Index







Licensing 25



Main Index


24






Main Index













Main Index


26




in Table 3-1


PlatformOperating



V910331Yes Ethernet

Card


Card





Fortran 95 83

SunOS_sparc Patch

127000-01 20070718)

Yes NA


Fortran 95 83

SunOS_i386 Patch

127002-01 20070718)

Yes NA



Card


Card


Card









Main Index























Main Index


28



Main Index





4 Using Dytran





Main Index








Main Index


32







Main Index













Main Index


34



Main Index
























mud and tire











Main Index






Interaction (FSI)

Overview 8



Method 11





Main Index






















Main Index




10


GRIDs and CHEXAs



Main Index












more details


Main Index

D t R l G id12




12































Main Index





Main Index







Main Index













Main Index





Main Index


18




Main Index




Cohesive Friction





Main Index


20



Cohesive Friction

Main Index




















jobs


attached to Patan















Main Index


22



g




instability






Main Index







Licensing 25



Main Index


24






Main Index













Main Index


26




in Table 3-1


PlatformOperating



V910331Yes Ethernet

Card


Card





Fortran 95 83

SunOS_sparc Patch

127000-01 20070718)

Yes NA


Fortran 95 83

SunOS_i386 Patch

127002-01 20070718)

Yes NA



Card


Card


Card









Main Index























Main Index


28



Main Index





4 Using Dytran





Main Index








Main Index


32







Main Index













Main Index


34



Main Index






Interaction (FSI)

Overview 8



Method 11





Main Index






















Main Index




10


GRIDs and CHEXAs



Main Index












more details


Main Index

D t R l G id12




12































Main Index





Main Index







Main Index













Main Index





Main Index


18




Main Index




Cohesive Friction





Main Index


20



Cohesive Friction

Main Index




















jobs


attached to Patan















Main Index


22



g




instability






Main Index







Licensing 25



Main Index


24






Main Index













Main Index


26




in Table 3-1


PlatformOperating



V910331Yes Ethernet

Card


Card





Fortran 95 83

SunOS_sparc Patch

127000-01 20070718)

Yes NA


Fortran 95 83

SunOS_i386 Patch

127002-01 20070718)

Yes NA



Card


Card


Card









Main Index























Main Index


28



Main Index





4 Using Dytran





Main Index








Main Index


32







Main Index













Main Index


34



Main Index






















Main Index




10


GRIDs and CHEXAs



Main Index












more details


Main Index

D t R l G id12




12































Main Index





Main Index







Main Index













Main Index





Main Index


18




Main Index




Cohesive Friction





Main Index


20



Cohesive Friction

Main Index




















jobs


attached to Patan















Main Index


22



g




instability






Main Index







Licensing 25



Main Index


24






Main Index













Main Index


26




in Table 3-1


PlatformOperating



V910331Yes Ethernet

Card


Card





Fortran 95 83

SunOS_sparc Patch

127000-01 20070718)

Yes NA


Fortran 95 83

SunOS_i386 Patch

127002-01 20070718)

Yes NA



Card


Card


Card









Main Index























Main Index


28



Main Index





4 Using Dytran





Main Index








Main Index


32







Main Index













Main Index


34



Main Index




10


GRIDs and CHEXAs



Main Index












more details


Main Index

D t R l G id12




12































Main Index





Main Index







Main Index













Main Index





Main Index


18




Main Index




Cohesive Friction





Main Index


20



Cohesive Friction

Main Index




















jobs


attached to Patan















Main Index


22



g




instability






Main Index







Licensing 25



Main Index


24






Main Index













Main Index


26




in Table 3-1


PlatformOperating



V910331Yes Ethernet

Card


Card





Fortran 95 83

SunOS_sparc Patch

127000-01 20070718)

Yes NA


Fortran 95 83

SunOS_i386 Patch

127002-01 20070718)

Yes NA



Card


Card


Card









Main Index























Main Index


28



Main Index





4 Using Dytran





Main Index








Main Index


32







Main Index













Main Index


34



Main Index












more details


Main Index

D t R l G id12




12































Main Index





Main Index







Main Index













Main Index





Main Index


18




Main Index




Cohesive Friction





Main Index


20



Cohesive Friction

Main Index




















jobs


attached to Patan















Main Index


22



g




instability






Main Index







Licensing 25



Main Index


24






Main Index













Main Index


26




in Table 3-1


PlatformOperating



V910331Yes Ethernet

Card


Card





Fortran 95 83

SunOS_sparc Patch

127000-01 20070718)

Yes NA


Fortran 95 83

SunOS_i386 Patch

127002-01 20070718)

Yes NA



Card


Card


Card









Main Index























Main Index


28



Main Index





4 Using Dytran





Main Index








Main Index


32







Main Index













Main Index


34



Main Index




12































Main Index





Main Index







Main Index













Main Index





Main Index


18




Main Index




Cohesive Friction





Main Index


20



Cohesive Friction

Main Index




















jobs


attached to Patan















Main Index


22



g




instability






Main Index







Licensing 25



Main Index


24






Main Index













Main Index


26




in Table 3-1


PlatformOperating



V910331Yes Ethernet

Card


Card





Fortran 95 83

SunOS_sparc Patch

127000-01 20070718)

Yes NA


Fortran 95 83

SunOS_i386 Patch

127002-01 20070718)

Yes NA



Card


Card


Card









Main Index























Main Index


28



Main Index





4 Using Dytran





Main Index








Main Index


32







Main Index













Main Index


34



Main Index




Main Index







Main Index













Main Index





Main Index


18




Main Index




Cohesive Friction





Main Index


20



Cohesive Friction

Main Index




















jobs


attached to Patan















Main Index


22



g




instability






Main Index







Licensing 25



Main Index


24






Main Index













Main Index


26




in Table 3-1


PlatformOperating



V910331Yes Ethernet

Card


Card





Fortran 95 83

SunOS_sparc Patch

127000-01 20070718)

Yes NA


Fortran 95 83

SunOS_i386 Patch

127002-01 20070718)

Yes NA



Card


Card


Card









Main Index























Main Index


28



Main Index





4 Using Dytran





Main Index








Main Index


32







Main Index













Main Index


34



Main Index







Main Index













Main Index





Main Index


18




Main Index




Cohesive Friction





Main Index


20



Cohesive Friction

Main Index




















jobs


attached to Patan















Main Index


22



g




instability






Main Index







Licensing 25



Main Index


24






Main Index













Main Index


26




in Table 3-1


PlatformOperating



V910331Yes Ethernet

Card


Card





Fortran 95 83

SunOS_sparc Patch

127000-01 20070718)

Yes NA


Fortran 95 83

SunOS_i386 Patch

127002-01 20070718)

Yes NA



Card


Card


Card









Main Index























Main Index


28



Main Index





4 Using Dytran





Main Index








Main Index


32







Main Index













Main Index


34



Main Index












Main Index





Main Index


18




Main Index




Cohesive Friction





Main Index


20



Cohesive Friction

Main Index




















jobs


attached to Patan















Main Index


22



g




instability






Main Index







Licensing 25



Main Index


24






Main Index













Main Index


26




in Table 3-1


PlatformOperating



V910331Yes Ethernet

Card


Card





Fortran 95 83

SunOS_sparc Patch

127000-01 20070718)

Yes NA


Fortran 95 83

SunOS_i386 Patch

127002-01 20070718)

Yes NA



Card


Card


Card









Main Index























Main Index


28



Main Index





4 Using Dytran





Main Index








Main Index


32







Main Index













Main Index


34



Main Index




Main Index


18




Main Index




Cohesive Friction





Main Index


20



Cohesive Friction

Main Index




















jobs


attached to Patan















Main Index


22



g




instability






Main Index







Licensing 25



Main Index


24






Main Index













Main Index


26




in Table 3-1


PlatformOperating



V910331Yes Ethernet

Card


Card





Fortran 95 83

SunOS_sparc Patch

127000-01 20070718)

Yes NA


Fortran 95 83

SunOS_i386 Patch

127002-01 20070718)

Yes NA



Card


Card


Card









Main Index























Main Index


28



Main Index





4 Using Dytran





Main Index








Main Index


32







Main Index













Main Index


34



Main Index




Main Index




Cohesive Friction





Main Index


20



Cohesive Friction

Main Index




















jobs


attached to Patan















Main Index


22



g




instability






Main Index







Licensing 25



Main Index


24






Main Index













Main Index


26




in Table 3-1


PlatformOperating



V910331Yes Ethernet

Card


Card





Fortran 95 83

SunOS_sparc Patch

127000-01 20070718)

Yes NA


Fortran 95 83

SunOS_i386 Patch

127002-01 20070718)

Yes NA



Card


Card


Card









Main Index























Main Index


28



Main Index





4 Using Dytran





Main Index








Main Index


32







Main Index













Main Index


34



Main Index



Cohesive Friction





Main Index


20



Cohesive Friction

Main Index




















jobs


attached to Patan















Main Index


22



g




instability






Main Index







Licensing 25



Main Index


24






Main Index













Main Index


26




in Table 3-1


PlatformOperating



V910331Yes Ethernet

Card


Card





Fortran 95 83

SunOS_sparc Patch

127000-01 20070718)

Yes NA


Fortran 95 83

SunOS_i386 Patch

127002-01 20070718)

Yes NA



Card


Card


Card









Main Index























Main Index


28



Main Index





4 Using Dytran





Main Index








Main Index


32







Main Index













Main Index


34



Main Index



Cohesive Friction

Main Index




















jobs


attached to Patan















Main Index


22



g




instability






Main Index







Licensing 25



Main Index


24






Main Index













Main Index


26




in Table 3-1


PlatformOperating



V910331Yes Ethernet

Card


Card





Fortran 95 83

SunOS_sparc Patch

127000-01 20070718)

Yes NA


Fortran 95 83

SunOS_i386 Patch

127002-01 20070718)

Yes NA



Card


Card


Card









Main Index























Main Index


28



Main Index





4 Using Dytran





Main Index








Main Index


32







Main Index













Main Index


34



Main Index



















jobs


attached to Patan















Main Index


22



g




instability






Main Index







Licensing 25



Main Index


24






Main Index













Main Index


26




in Table 3-1


PlatformOperating



V910331Yes Ethernet

Card


Card





Fortran 95 83

SunOS_sparc Patch

127000-01 20070718)

Yes NA


Fortran 95 83

SunOS_i386 Patch

127002-01 20070718)

Yes NA



Card


Card


Card









Main Index























Main Index


28



Main Index





4 Using Dytran





Main Index








Main Index


32







Main Index













Main Index


34



Main Index



g




instability






Main Index







Licensing 25



Main Index


24






Main Index













Main Index


26




in Table 3-1


PlatformOperating



V910331Yes Ethernet

Card


Card





Fortran 95 83

SunOS_sparc Patch

127000-01 20070718)

Yes NA


Fortran 95 83

SunOS_i386 Patch

127002-01 20070718)

Yes NA



Card


Card


Card









Main Index























Main Index


28



Main Index





4 Using Dytran





Main Index








Main Index


32







Main Index













Main Index


34



Main Index







Licensing 25



Main Index


24






Main Index













Main Index


26




in Table 3-1


PlatformOperating



V910331Yes Ethernet

Card


Card





Fortran 95 83

SunOS_sparc Patch

127000-01 20070718)

Yes NA


Fortran 95 83

SunOS_i386 Patch

127002-01 20070718)

Yes NA



Card


Card


Card









Main Index























Main Index


28



Main Index





4 Using Dytran





Main Index








Main Index


32







Main Index













Main Index


34



Main Index






Main Index













Main Index


26




in Table 3-1


PlatformOperating



V910331Yes Ethernet

Card


Card





Fortran 95 83

SunOS_sparc Patch

127000-01 20070718)

Yes NA


Fortran 95 83

SunOS_i386 Patch

127002-01 20070718)

Yes NA



Card


Card


Card









Main Index























Main Index


28



Main Index





4 Using Dytran





Main Index








Main Index


32







Main Index













Main Index


34



Main Index












Main Index


26




in Table 3-1


PlatformOperating



V910331Yes Ethernet

Card


Card





Fortran 95 83

SunOS_sparc Patch

127000-01 20070718)

Yes NA


Fortran 95 83

SunOS_i386 Patch

127002-01 20070718)

Yes NA



Card


Card


Card









Main Index























Main Index


28



Main Index





4 Using Dytran





Main Index








Main Index


32







Main Index













Main Index


34



Main Index




in Table 3-1


PlatformOperating



V910331Yes Ethernet

Card


Card





Fortran 95 83

SunOS_sparc Patch

127000-01 20070718)

Yes NA


Fortran 95 83

SunOS_i386 Patch

127002-01 20070718)

Yes NA



Card


Card


Card









Main Index























Main Index


28



Main Index





4 Using Dytran





Main Index








Main Index


32







Main Index













Main Index


34



Main Index






















Main Index


28



Main Index





4 Using Dytran





Main Index








Main Index


32







Main Index













Main Index


34



Main Index



Main Index





4 Using Dytran





Main Index








Main Index


32







Main Index













Main Index


34



Main Index





4 Using Dytran





Main Index








Main Index


32







Main Index













Main Index


34



Main Index








Main Index


32







Main Index













Main Index


34



Main Index







Main Index













Main Index


34



Main Index












Main Index


34



Main Index



Main Index

dytran release guide

Documents