A Continuum Theory of Crack Shielding in Ceramics,

Abstract

A phenomenological constitutive model is proposed which aims at describing the overall effect of microfracture in ceramics. Based on this model, the asymptotic stress, strain and displacement fields at the tip of a stationary macroscopic crack are determined in closed form. The near-tip stress-intensity factor is computed and observed to be significantly smaller than the applied stress-intensity factor even for moderate amounts of damage. (Author)

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Document Details

Document Type
Technical Report
Publication Date
May 22, 1986
Accession Number
ADA168599

Entities

People

  • M. Ortiz

Organizations

  • Brown University

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Boundaries
  • Constitutive Equations
  • Crack Tips
  • Cracks
  • Creep
  • Elastic Materials
  • Engineering
  • Equations
  • Grain Boundaries
  • Intensity
  • J Integrals
  • Materials
  • Modulus Of Elasticity
  • Stress Intensity Factors
  • Stress Strain Relations
  • Stresses
  • Tensile Stress

Readers

  • Materials Science (Mechanical Engineering).
  • Plasma Physics / Magnetohydrodynamics