Damage in Particulate Composites with Hard Particles Embedded in a Soft Matrix

Abstract

Damage evolution in a particulate composite around a notch tip was studied. The composite had hard and stiff particles embedded in a soft and weak matrix like a rubber material. The major damage modes were the interface debonding called dewetting and the resulting matrix cracking because the particles were much stronger than the matrix. A numerical modeling and simulation of such damage was conducted using the micro/macro-approach. This technique combined micro-level analysis and macro-level analysis. Damage was described at the micro-level using a damage theory. Damage initiation and growth at a circular notch tip were predicted from the numerical study, and their results were compared with experimental data. Both results compared very well.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1999
Accession Number
ADA408451

Entities

People

  • Chun Ting Liu
  • Y. Kwon

Organizations

  • Air Force Research Laboratory

Tags

DTIC Thesaurus Topics

  • Air Force
  • Air Force Research Laboratories
  • Applied Mechanics
  • Composite Materials
  • Composite Structures
  • Constitutive Equations
  • Differential Equations
  • Engineering
  • Equations
  • Experimental Data
  • Finite Element Analysis
  • Material Degradation Processes
  • Materials
  • Mechanics
  • Metal Matrix Composites
  • Partial Differential Equations
  • Stress Strain Relations

Readers

  • Logistics and Supply Chain Management.
  • Mechanical Engineering/Mechanics of Materials.
  • Reinforced Composite Materials