Accession Number : AD0722867

Title :   A Large Deformation Elastic-Viscoplastic Analysis of a Thick Walled Spherical Shell,

Corporate Author : TECHNION - ISRAEL INST OF TECH HAIFA DEPT OF MATERIALS ENGINEERING

Personal Author(s) : Bodner,S. R. ; Partom,Y.

Report Date : NOV 1970

Pagination or Media Count : 45

Abstract : A large deformation elastic-viscoplastic theory is formulated which considers both elastic and inelastic deformations to be present at all stages of loading and unloading. The theory does not require the assumption of a yield criterion or the prior determination of whether the material is loading or unloading. The theory is based on relating the essential parameters to state variables; the particular constitutive relations are motivated by the equations of dislocation dynamics. A numerical scheme for calculating deformations is developed and applied to a thick walled spherical shell under internal pressure. Various numerical examples are presented. (Author)

Descriptors :   (*SHELLS(STRUCTURAL FORMS), DEFORMATION), LOADS(FORCES), ELASTIC PROPERTIES, PLASTIC PROPERTIES, COMPRESSIVE PROPERTIES, STRESSES, STRAIN(MECHANICS), EQUATIONS OF MOTION, NUMERICAL ANALYSIS, ISRAEL

Subject Categories : Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE