LS-DYNA TUTORIAL 12: Static and Dynamic Axial Tube Crush

Опубликовано: 09 Март 2025
на канале: Ameen Topa

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Welcome back to another LS-DYNA tutorial. In this video I will show you how to do the simulation of a quasi-static square tube crush. This simulation is performed with implicit analysis. The simulation is based on the experimental work by Abdullah et al. (2012).

Then we will modify the file to simulate dynamic axial tube with explicit solver. The last part of this tutorial is making a hexagonal tube and comparing its the dynamic response with that of the square tube.

In this tutorial, I cover the following:
How to make a square tube from shell elements
How to use fully integrated shell element formulation
How and when to use MORTAR contact
How to invoke the implicit solver
How to plot the force vs displacement in the Pre-post
How to Scale up/down the parts and elements
How to create a mesh for a hexagon tube
How to add element mass
How to change contact type using a text editor

The linked to the reference paper in this video:
https://www.scientific.net/AMR.576.651

Varmintal’s engineering website for the material properties:
https://www.varmintal.com/aengr.htm

Here are some links for your further reading on implicit analysis:
https://www.dynasupport.com/howtos/im...
https://www.dynasupport.com/howtos/im...
https://www.dynasupport.com/howtos/im...
https://www.dynasupport.com/howtos/im...
https://www.dynasupport.com/howtos/im...