Accession Number : AD0712060

Title :   ON UNIQUENESS AND CONVERGENCE OF A DISCRETE AGGREGATE MODEL IN POLYCRYSTALLINE PLASTICITY.

Descriptive Note : Technical rept.,

Corporate Author : NORTH CAROLINA STATE UNIV RALEIGH

Personal Author(s) : Havner,Kerry S.

Report Date : SEP 1970

Pagination or Media Count : 24

Abstract : A discrete model for the study of small deformation response of polycrystalline aggregates is presented and analytically investigated. The model encompasses both anisotropic crystal elasticity and a general hardening law over crystallographic slip systems. Internal fields which satisfy the discrete governing equations are established as unique, and a strict proof of convergence to the solution of the corresponding continuum boundary value problem is given. Thus, the model is rigorously confirmed as a rational approximation well-suited to quantitative analyses of aggregate behavior. (Author)

Descriptors :   (*DEFORMATION, METAL CRYSTALS), ELASTIC PROPERTIES, PLASTIC PROPERTIES, BOUNDARY VALUE PROBLEMS, MATHEMATICAL MODELS, STRAIN HARDENING

Subject Categories : Crystallography
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE