Numerical Investigation on the Failure Mechanisms of Particulate Composite Materials under Various Loading Conditions using a Damage Constitutive Model

Abstract

During the present research, the following have been accomplished : 1) The separate dilatational/deviatoric damage constitutive model was proposed along with a method to extract its material parameters from one-dimensional stress-strain curve. The damage model was implemented in the s-FEM computer program. 2) S-FEM formulation with the cohesive zone model has been proposed and has been implemented in the s-FEM program. 3) S-FEM analyses on particulate composite materials, with assuming the matrix damage and dewetting between the particles and matrix material, has been carried out. Some characteristic behavior of damages in the particulate composite materials has been revealed.

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Document Details

Document Type
Technical Report
Publication Date
Aug 21, 2006
Accession Number
ADA455952

Entities

People

  • Hiroshi Okada

Organizations

  • Kagoshima University

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Composite Materials
  • Computer Programs
  • Computers
  • Coordinate Systems
  • Engineering
  • Equations
  • Failure Mode And Effect Analysis
  • Finite Element Analysis
  • Materials
  • Mechanics
  • Particles
  • Particulates
  • Stress Concentration
  • Stress Strain Relations
  • Stresses
  • Three Dimensional
  • Two Dimensional

Readers

  • Computational Modeling and Simulation
  • Structural Health Monitoring of Composite Structures.