LS-DYNA is an analysis software package for use in predicting how a prototype will respond to real-world events. It enables users to produce virtual prototypes, realistically simulating the full-motion behavior of complex mechanical systems on their computers and quickly analyzing multiple design variations until an optimal design is achieved. Among the applications that LS-DYNA is used for are crashworthiness simulations, metal forming, biomedical applications and earthquake engineering.
LS-DYNA is available on all of the computers on the engineering network.
Before starting LS-DYNA, you will need to modify your .cshrc. The following 3 lines need to be added to the end:
if (-e $SOFT/lsdyna ) then source $SOFT/lsdyna
To start LS-DYNA type lsdyna i=input-file at the command line where 'input-file' is your input file.
You can then view the results with the post processor. To start the post processor, type lspp42 and you will get a GUI menu.
The command line sequence for running LS-DYNA in background is:
lsdyna i=inputfile >out &
The spaces in the above line are important.
There are examples of LS-DYNA code in /opt/lsdyna/examples. You may copy any of them and try them out.
The following is a very useful web page for FEA applications in general.
The University of Mississippi has a listserv that leans towards the ability of LS-DYNA to analyze crashworthiness. To subscribe:
Send to: firstname.lastname@example.org Subject: do not include a subject (leave blank) Message: SUBSCRIBE crash-l FirstName LastName
You will be sent directions on how to access the archives, post a question and unsubscribe.