Accession Number : ADA118434

Title :   Finite Deformation Effects in Plasticity Analysis.

Descriptive Note : Interim technical rept.,

Corporate Author : STANFORD UNIV CA DIV OF APPLIED MECHANICS

Personal Author(s) : Lee,E H

PDF Url : ADA118434

Report Date : Apr 1982

Pagination or Media Count : 17

Abstract : The non-linear kinematics of the combination of elastic and plastic deformations at finite strain provides the mathematical structure to examine aspects of elastic-plastic analysis more succinctly than is possible with the approach based on infinitesimal elastic strain. Kinematic hardening represents the anisotropic component of strain hardening by a back stress alpha. Application of current theory for finite deformation incorporates the effect of finite rotation by using the Jaumann derivative in the evolution equation for alpha. This approach predicts oscillating shear stress for monotonically increasing simple shear strain but this anomaly can be eliminated by adopting a physically more meaningful modified Jaumann derivative. (Author)

Descriptors :   *Plastic properties, *Plastic deformation, *Elastic properties, *Strain(Mechanics), Strain hardening, Kinematics, Anisotropy, Stress analysis, Metalworking, Mathematical analysis

Subject Categories : Metallurgy and Metallography
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE