Came across this nice document that talks about the strains and stress computations used in many nonlinear finite element codes. If you know the author of ths material, please do let me know.
You can also find the entire set of materials here
Archive for October, 2007
Strains and Stress in NonLinear Finite Element Method
Published by October 19th, 2007 in LS-DYNA Bytes. 0 CommentsIn an earlier post, we saw how *CASE keywords can help us perform sequential and sequential+dependent simulations. But here I want to talk a little more about the LSCASEDRIVER program itself. LSCASEDRIVER is a simple yet powerful utility that is sometimes built into the LS-DYNA executable, but it can also be used in a standalone [...]
Encryption has been around for several years but it finally comes to LS-DYNA in the form of GPG encryption which can be used at no additional cost to encrypt LS-DYNA input files to protect important proprietary data such as material definitions. Any portion of the input file can also be encrypted in multilple blocks of [...]
Sense-Switch Controls for Interacting with Running LS-DYNA Jobs
Published by October 8th, 2007 in LS-DYNA Bytes. 2 CommentsThere are several sense switch controls that are available to interactively request LS-DYNA respond to certain pre-defined calls. The well documented sense-switch controls for Explicit calculations are listed below.
General Sense-Switches
Type Response
—- ————————————————————
sw1 a restart [...]
There are several methods available to interactively termination an running LS-DYNA job. They are briefly discussed here.
1. Sense Switch ‘SW1′
This command is typed by first typing ‘Control-C’ followed by ‘SW1′. This causes LS-DYNA to terminate gracefully by writing all the information from memory to the file system.
2. Creating a file ‘D3KIL’ in [...]
Features Every LS-DYNA Simulation Must Have
Published by October 4th, 2007 in LS-DYNA Bytes. 5 CommentsLS-DYNA is a general-purpose simulation software. This is a good thing for analysts since it provides tremendous flexibility in simulating a wide range of events. The downside to this is the fact that every simulation requires ‘best practices’ to ensure it meets the quality and accuracy requirements of th event that is being simulated. Additionally, [...]
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