Damage Mechanics of Composite Materials: Constitutive Modeling and Computational Algorithms

Abstract

The present work is concerned with development of innovative damage mechanics models for constitutive modeling of modern composite materials. Special attention is focused on micromechanical damage theories to explain and model behavior of composites based on micromechanics and micro-geometry. In particular, basic studies are performed on the notion of isotropic and anisotropic damage variables in continuum damage mechanics. Furthermore, a micromechanical damage model is presented for uniaxially reinforced composites and is analytically derived based on micromechanical bi-material arc crack solutions. Finally, a novel three-dimensional statistical micromechanical theory is proposed to investigate the nonlinear behavior of microcrack-weakened brittle solids. The theory is fundamentally different from existing effective medium theories and deterministic microcrack interaction method.

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Document Details

Document Type
Technical Report
Publication Date
Apr 21, 1991
Accession Number
ADA236696

Entities

People

  • Jiann-wen Ju

Organizations

  • Princeton University

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Civil Engineering
  • Composite Materials
  • Elastic Properties
  • Engineering
  • Equations
  • Failure Mode And Effect Analysis
  • Geometry
  • Laminates
  • Mechanical Properties
  • Mechanics
  • Micromechanics
  • Modulus Of Elasticity
  • Shear Modulus
  • Stress Strain Relations
  • Stresses
  • Three Dimensional
  • Two Dimensional

Fields of Study

  • Engineering

Readers

  • Reinforced Composite Materials
  • Structural Health Monitoring of Composite Structures.
  • Theoretical Analysis.