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Does anyone know how I can solve this problem in Radioss or what causes it? Is it because of the contact friction value? Or is it due to incorrect material failure data?
The problem I’m referring to is the excessive deformability of the elements without being deleted.
Hi,
Would you confirm that the target application is hyperveloce impact (or similar)? Would you share what is the target application?
First, make sure that all data are consistant (with respect to a given unit system).
If the application is indeed hyperveloce impact, the deformation is somehow expected the one. The excessive deformations would then be due to the failure criterion.
Which one are you using (if you defined one)? If using /FAIL/TENSSTRAIN, did you set a limit for 1st principal strain (eps_f1)? You could add quality mesh criteria in the solid property (maximum volume ratio, maximum aspect ratio) so as to delete elements with excessive deformation.
I suggest you also have a look to SOL2SPH approach that enable conversion for solid elements in hydrodynamic particles (based on failure criteria, avoiding excessive deformation without removing any material and mass).
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