Simultaneous Stress Relaxation in Tension and Creep in Torsion of 2618 Aluminum at Elevated Temperature.

Abstract

Experiments are reported for stress relaxation and simultaneous stress relaxation and creep with proportional and non proportional loading and unloading. Results were compared with predictions of a viscous-viscoelastic theory, and modifications, and strain hardening. Predictions were calculated from results of combined constant-stress tension and torsion creep and recovery tests only, which were reported previously. Results showed that a modified viscous-viscoelastic theory predicted all the observed features and predicted the creep and relaxation rates reasonably well. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1980
Accession Number
ADA095410

Entities

People

  • James S. Lai
  • William N. Findley

Organizations

  • Brown University

Tags

DTIC Thesaurus Topics

  • Aluminum
  • Constitutive Equations
  • Creep
  • Creep Tests
  • Engineering
  • Equations
  • Hardening
  • Materials
  • Measurement
  • Military Research
  • Modulus Of Elasticity
  • Shear Stresses
  • Strain Hardening
  • Strain Rate
  • Tensile Strain
  • Tensile Stress
  • Time Intervals

Readers

  • Mechanical Engineering/Mechanics of Materials.