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


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a140268.pdf


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