Analysis of Damage Growth in Particulate Composites Using a Work Potential

Abstract

The elements of a theory for elastic composites with a changing microstructure, such as microcracking, are reviewed. This formulation, which uses internal state variables and potentials like strain energy and work, is then illustrated by mathematically characterizing and predicting the damage and deformation behavior of particle-filled rubber under axial straining and confining pressure. Next, a micromechanical model, which accounts for effects of distributed microcracks and particles on overall deformation behavior, is described and shown to be in agreement with experimental findings. It is then indicated how this model may be combined with the potential theory to extend the results from specimens under axial straining and pressure to more general strain states. (JES)

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1990
Accession Number
ADA225790

Entities

People

  • R. A. Schapery

Organizations

  • Texas A&M University

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Applied Mechanics
  • Classification
  • Composite Materials
  • Engineering
  • Engineers
  • Laminates
  • Material Degradation Processes
  • Materials
  • Materials Engineering
  • Materials Processing
  • Materials Science
  • Mechanical Engineering
  • Mechanics
  • Micromechanics
  • Modulus Of Elasticity
  • Particles
  • Solid Propellants

Readers

  • Fluid Dynamics.
  • Structural Health Monitoring of Composite Structures.