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Latest articles
SPC Constraints in Dynamic Relaxation to Improve Convergence
Dynamic Relaxation (DR) is a simple but effective technique to initialize structures to pre-loads prior to any primary load application. LS-DYNA has …
Visualizing User Generated Results into LS-OPT
To view results from manual what-if studies, LS-OPT provides a great way to import these results so we can take advantage of its data visualization …
Sensor Definitions in LS-DYNA
Sensors can be used to trigger entities based on certain criteria. The following image is a high-level steps involved to take advantage of sensors in …
New Coordinate based Joint Definition – *CONSTRAINED_JOINT_COOR_{JOINT_TYPE}
Several joints are available in LS-DYNA that can be defined between two rigid bodies or nodal rigid bodies. The difficult part of the joint definition from …
*RIGIDWALL_{DISPLAY} option
Rigidwalls are analytical representations of surfaces or volumes that are frequently used to represent stiff structures that are either stationary or in …
LS-DYNA Examples Blog by Student Qui
Update The blog no longer seems to exist. I recently came across a nice blog written by QUI. It is remarkable that he is willing to share examples and his …
Dr. Benson’s notes on Hydrocodes.
A nice publication on hydrocodes by Dr. Benson .
Unloading in MAT_FABRIC (MAT_034)
This is a post by Guest Author Satish Pathy who works full time for LSTC In *MAT_FABRIC, element formulation 4 & 14 will allow you to input unloading …
Mass scaling for MAT_SPOTWELD elements
Deformable spotwelds modeled using beams or solids elements can invariably limit the global timestep due to its small dimensions. LS-DYNA provides two …
Nature by Numbers
Shell, Solid and Beam Formulations for Explicit and Implicit
Control cards are often handy to overwrite local values. A good example would be if we need all parts to use a certain element formulation THEORY which is …
Modeling rigid bodies
LS-DYNA allows the modeling of rigid-bodies by assigning any part with the MAT_RIGID material law (MAT_020). This is by far the most easiest method …