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When I apply rigid body constraint to a shell model and try to run explicit dynamics analysis, I get the following error:
*INFO in cascade: linear MPCs and
nonlinear MPCs depend on each other
common node: 1 in direction 1
*ERROR in nonlingeo: linear and nonlinear MPC's depend on each other
This is not allowed in a explicit dynamic calculation
It's also the case with rigid body constraints in axisymmetric and plane stress/strain explicit dynamics models.
Rigid body constraint is very useful in explicit dynamics since it can simulate rigid forming tools, impact targets and so on. Considering high computational cost of those analyses, simplifications like 2D elements are crucial so it would be great if this limitation could be removed.
The text was updated successfully, but these errors were encountered:
FEA-eng
changed the title
Rigid body constraint doesn't work with shells and axisymmetric elements in explicit dynamics
Rigid body constraint doesn't work with shell, axisymmetric and plane stress/strain elements in explicit dynamics
Nov 13, 2023
When I apply rigid body constraint to a shell model and try to run explicit dynamics analysis, I get the following error:
Here's a sample file:
https://www.dropbox.com/scl/fi/wwr8q9y3x74966y4czzry/RB_shell.inp?rlkey=3fw1z78wfhw2j1tqyngtuk16c&dl=0
It's also the case with rigid body constraints in axisymmetric and plane stress/strain explicit dynamics models.
Rigid body constraint is very useful in explicit dynamics since it can simulate rigid forming tools, impact targets and so on. Considering high computational cost of those analyses, simplifications like 2D elements are crucial so it would be great if this limitation could be removed.
The text was updated successfully, but these errors were encountered: