Two-Dimensional Strain Cycling in Plasticity,

Abstract

Detailed calculations are presented for strain cycling in a homogenous deformation that can be sustained by a biaxial state of stress in thin-walled specimens of OFHC copper. These calculations are made with a set of relatively simple constitutive equations within the framework of the strain-space formulation of plasticity. The predicted theoretical calculations, carried out in the context of small deformation, are in good agreement with corresponding available experimental results for saturation hardening and erasure of memory in two-dimensional strain cycling. Also, with the use of the calculated results, a scalar quantity that characterizes strain-hardening is plotted as a function of plastic strains. Such plots are likely to be useful for computational purposes. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1985
Accession Number
ADA161666

Entities

People

  • D. J. Nikkel Jr
  • Paul M. Naghdi

Organizations

  • University of California, Berkeley

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Applied Mechanics
  • Constitutive Equations
  • Continuum Mechanics
  • Engineering
  • Equations
  • Experimental Data
  • Hardening
  • Mechanical Engineering
  • Mechanics
  • Plastic Deformation
  • Plastic Properties
  • Scalar Functions
  • Shear Modulus
  • Shear Stresses
  • Strain Hardening
  • Strain Rate
  • Two Dimensional

Readers

  • Computational Fluid Dynamics (CFD)
  • Mechanical Engineering/Mechanics of Materials.

Technology Areas

  • Space