Accession Number : ADA140268

Title :   Revisions to the PETROS 4 Shell Response Code.

Descriptive Note : Final rept.,

Corporate Author : ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s) : Huffington,N J ; Wisniewski,H L

PDF Url : ADA140268

Report Date : Feb 1984

Pagination or Media Count : 93

Abstract : 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.

Descriptors :   *Aircraft panels, *Structural response, *Computerized simulation, *Blast loads, *Finite difference theory, *Finite element analysis, Elastic properties, Plastic properties, Shear stresses, Plastic deformation, Hydrodynamic codes, Shaped charge jets, Shaped charge warheads, Armor plate, Equations of motion

Subject Categories : Numerical Mathematics
      Ammunition and Explosives
      Armor

Distribution Statement : APPROVED FOR PUBLIC RELEASE