Revisions to the PETROS 4 Shell Response Code.
ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD
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The existing PETROS 4 finite deflection elastoplastic structural shell response code was modified to permit analysis of the response of structural panels to nearby high explosive detonations. A modified constitutive formulation involving prescribed through-thickness stresses was introduced. Previously omitted surface traction terms were added to the equations of motion. A recycling option based on a strain equivalence criterion was introduced to inhibit the unrestricted growth of a breathing mode. Additional printer and plotter output features were incorporated into the program.
- Numerical Mathematics
- Ammunition and Explosives