LS-DYNA

Version System A System B System C
ls971d R12.0.0 AU AU
ls971d R11.1.0 (default) AU AU
ls971d R10.1.0 AU AU
ls971d R10.0.0 AU AU
ls971d R9.0.1 AU AU
ls971d R8.1.0 AU AU

Key: AU = Available for academic users only, ― = Not available for use.

Modules software package dynamically adjusts the environment settings for using applications, by using the module command. It also makes changing the environment settings easy when switching between different versions of applications. For details, see Modules.

Version Module File
ls971d R12.0.0 ls-dyna/ls971-12.0.0
ls971d R11.1.0 ls-dyna/ls971-11.1.0
ls971d R10.1.0 ls-dyna/ls971-10.1.0
ls971d R10.0.0 ls-dyna/ls971-10.0.0
ls971d R9.0.1 ls-dyna/ls971-9.0.1
ls971d R8.1.0 ls-dyna/ls971-8.1.0

You can see the list of module files available by using the module avail command.

This software can be started up to four at the same time by one person.

LS-PrePost is a pre and post-software that processes the input/output data of LS-DYNA.
This software is delivered free, and any LS-DYNA user can use this.

You can download it at the website of the LS-DYNA’s manufacturer, LSTC.

To go to the download page, please click SUPPORT > DOWNLOAD/INSTALL in the menu bar and then click LS-PrePost Download in the right menu.

LS-PREPOST is installed on the system B,C.

Version System A System B System C
ls-prepost 4.6 (default) + +
ls-prepost 4.3 + +

Key: + = Available, ― = Not available for use.

The module files are below.

Version Module File
ls-prepost 4.6 ls-prepost/4.6
ls-prepost 4.3 ls-prepost/4.3

The module command is used to configure environmental settings.

$ module load ls-prepost

The details for module command are shown in Modules

On Exceed onDemand, you can run the ls-prepost by the following command.

$ xrun lsprepost

The details for xrun command are shown in Interactive processing

For reference on how to use LS-DYNA and LS-PrePost, the material documents used at the programming seminar are available on a first-come, first-served basis. Contact the North Support Desk, Inter-University Services Section. (Please note that only a limited number of materials are available.)

LS-DYNA, nonlinear dynamic structural analysis software, performs explicit-method-based time-history simulation of large deformation, elasto-plasticity, and dynamic contact and behavior of structural objects.
LS-DYNA is an improvement of DYNA3D developed by Lawrence Livermore National Laboratory (LLNL) of the United States, and from Ver.950 on, it supports as its standard function implicit-method-based structural analysis, fluid analysis, and thermal analysis.
With its explicit and implicit methods, this software supports normal linear analysis and frequency responses, and can be used as a high-end universal structural analysis tool.

  • Phenomenon analysis ---- The following phenomena can be analyzed:
    • Collision and shock (e.g., car collision)
    • Plastic forming (e.g., press forming)
    • Falling (e.g., falling of products carried along by users)
    • Crack and burst (e.g., chap)
    • Mechanism analysis involving distortion (e.g., conveyance by a rubber roller)
  • Contact
    LS-DYNA provides over 20 options for contact analysis. For contact surfaces, conditions including adherence, abrasion, contact, slip, and friction can be specified.
  • Material model
    LS-DYNA provides over 100 metallic and nonmetallic material models, each of which has various elements such as spring, damper, rigid body, and weld.
  • Interface
    Interfaces are provided for CAD data, other structural analysis software and simulation software.

  • Automobile
  • Aerospace
  • Defense
  • Electric devices
  • Construction and civil engineering
  • Nuclear power, etc.

Set up the environment by using the module command. (The module file you want is loaded.)

$ module load ls-dyna

$ tssrun ls971_d i=[executable file]  ncpu=[number of CPUs for parallel run ("1" is set if omitted)]

There are other options than executable file and number of CPUs for parallel run. Refer to the manual (LS-DYNA KEYWORD USER’S MANUAL) for details.

$ tssrun ls971_d i=sample.dyn ncpu=2

For details of tssrun , see Interactive Processing.

[d3hsp] : Analysis history output file
[messag] : Calculation execution message, error message output file
[status.out] : Analysis result output file
[d3plot] : File for outputting the 3D form of the model
[d3dump] : Data file required for restart

You need to prepare a Batch file to run LS-DYNA by Batch job. Write a script of the same commands as you execute on the command line and submit the job by the qsub command.

#!/bin/bash
#============ PBS Options ============
#QSUB -q gr19999b
#QSUB -ug gr19999
#QSUB -W 2:00
#QSUB -A p=1:t=2:c=2:m=7680M
#============ Shell Script ============
module load ls-dyna
#
ls971_d i=sample.dyn ncpu=$QSUB_CPUS

We periodically offer programming seminars, and distribute the handouts.


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