Damage Accumulation in Advanced Metal Matrix Composites Under Thermal Cycling/Creep Loadings

Abstract

Both experimental and analytical studies were conducted during the first year with the aim of identifying the damage accumulation process in a metal matrix Composite (MMC) subjected to combined creep and thermal cycling loadings, The main achievements in the experimental study are: completion of a new thermal cycler with constant stress loading capability, preliminary data of dimensional change of SiCp/6061 Al matrix composite and R-Curve behavior of PSZ- SS/PSZ composite--PSZ laminate, Whereas the first year analytical study includes construction of dislocation Punching model from ceramic/metal interfaces, a construction of analytical modeling of creep strain of a MMC subjected to either creep loading or combined creep/thermal cycling loading where the debonding of the mat fiber interface is accounted for, Three-parameter Weibull function is employed i model to simulate the distribution of the actual interfacial strength.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 1993
Accession Number
ADA271207

Entities

People

  • M. L. Dunn
  • M. S. Lui
  • M. Taya
  • W. D. Armstrong

Organizations

  • University of Washington

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Ceramic Materials
  • Ceramic Matrix Composites
  • Climate Change
  • Composite Materials
  • Finite Element Analysis
  • Material Degradation Processes
  • Materials
  • Materials Science
  • Materials Testing
  • Mechanical Properties
  • Mechanics
  • Metal Matrix Composites
  • Micromechanics
  • Silicon Carbide
  • Silicon Controlled Rectifiers
  • Stress Strain Relations
  • Thermal Cyclers

Readers

  • Computational Modeling and Simulation
  • Materials Science (Mechanical Engineering).
  • Reinforced Composite Materials