Simcenter 3D Solutions How Force boundary condition works for tet and hex mesh?

2021-10-06T23:27:58Z
Simcenter 3D

Summary

Details

How Force boundary condition works for tet and hex mesh?

Solution

The force on a surface is distributed to the underlying mesh in a manner that yields a uniform pressure across the mesh. The forces are distributed to the nodes using the element shape functions.

The linear shape functions distribute that in a manner that results in each node on that face getting an equal percentage of that faces load (1/3 for trias, 1/4 for quads). With parabolic shape functions, the forces end up being 0 at the corner nodes so you only see values on the midnodes.

This is the standard one  used across all commercial FEA codes


Notes

KB Article ID# PL8547205

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