Engineering stories, methods, and ideas.

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 …

Happy New Year !

Wishing everyone a very happy new year.