Strain-Dependent Creep Damage in Random Inhomogeneous Materials.

Abstract

Employing a recent homogeneous strain-dependent creep damage theory, the propagation of a failure front in a beam under pure bending is studied. A local inhomogeneous strain-dependent creep damage theory is then postulated, based on creep damage data obtained at J.R.C. Ispra for specimens of various lengths. Using this inhomogeneous theory, solutions for various loading conditions are obtained, and are shown to be in better agreement with observation than previous theories. Finally, the effect of random material parameters on the rupture time is considered for the constant tensile stress test and for the beam under pure bending. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1980
Accession Number
ADA097164

Entities

People

  • Colin A. Lee
  • Francis A. Cozzarelli

Organizations

  • University at Buffalo

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Aluminum Alloys
  • Differential Equations
  • Engineering
  • Equations
  • Fish
  • Geometry
  • Materials
  • Mechanics
  • Modulus Of Elasticity
  • New York
  • Partial Differential Equations
  • Probability
  • Random Variables
  • Solid State Physics
  • Stochastic Processes
  • Strain Rate
  • Tensile Stress

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Structural Health Monitoring of Composite Structures.
  • Wave Propagation and Nonlinear Chaotic Dynamics.