Accession Number : ADA184341

Title :   Steady Shearing in a Viscoplastic Solid.

Descriptive Note : Technical rept.,

Corporate Author : ARMY BALLISTIC RESEARCH LAB ABERDEEN PROVING GROUND MD

Personal Author(s) : Wright,Thomas W

PDF Url : ADA184341

Report Date : Jun 1987

Pagination or Media Count : 39

Abstract : Steady shearing solutions are found as quadratures within the context of a simple theory of viscoplasticity which includes thermal softening and heat conduction. The solutions are illustrated by numerical examples for four commonly used versions of viscoplasticity, where each version has first been calibrated against the same hypothetical data set. It is found that, although they give results that differ in detail, the four flow laws predict qualitatively similar morphology and appear to give rough agreement with physical measurements of adiabatic shear bands. The conjecture is made that steady solutions correspond to central boundary layers for the full unsteady theory.

Descriptors :   *VISCOPLASTIC PROPERTIES, *SHEAR PROPERTIES, BOUNDARY LAYER, ADIABATIC CONDITIONS, ARRHENIUS EQUATION, HARDNESS MOMENTUM TRANSFER, STRAIN HARDENING

Subject Categories : Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE