Accession Number : ADA290428

Title :   Theoretical, Experimental and Computational Studies in Plasticity.

Descriptive Note : Final rept. 30 Jun 90-29 Jun 94,

Corporate Author : MICHIGAN TECHNOLOGICAL UNIV HOUGHTON

Personal Author(s) : Aifantis, E. C. ; Zbib, H.

PDF Url : ADA290428

Report Date : 04 OCT 1994

Pagination or Media Count : 7

Abstract : The following main results were completed during the previous grant period. A photoelastic technique to measure plastic flow and instability has been developed and measurements for shear band characteristics have been obtained. An innovative biaxial experimental apparatus for determining the evolution of the yield loci with plate specimens has been designed and manufactured. Constitutive models incorporating the effects of anisotropy, texture, material rotation, and inhomogeneity have been developed and successfully used to interpret available experimental data such as axial effects in torsion. Numerical evaluations for shear band and plastic instability problems have been performed resulting in new information about the effects of anisotropy and texture on the stability of plastic deformation. (AN)

Descriptors :   *PLASTIC DEFORMATION, *PLASTIC PROPERTIES, STRESS STRAIN RELATIONS, MATHEMATICAL MODELS, EXPERIMENTAL DATA, COMPUTATIONS, FINITE ELEMENT ANALYSIS, ANISOTROPY, YIELD, HETEROGENEITY, BIAXIAL STRESSES, ROTATION, TORSION, SURFACE TENSION, PHOTOELASTICITY, PLASTIC FLOW, COMPRESSIVE PROPERTIES.

Subject Categories : Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE