Deformation and Damage Mechanisms in High Temperature Composits with Ductile Matrices

Abstract

This report presents a summary of the theoretical and experimental work performed in our research program on deformation and damage of high temperature composites. The theoretical part focused on two areas; modeling of fatigue damage in metal matrix composite and laminates by shakedown and nonlinear optimization, and refinement of the unified viscoplasticity theory formulated last year for homogeneous materials, in order to model certain phenomena observed in high temperature experiments of unreinforced metals. Implementation of the new viscoplasticity theory for the phases in the Periodic Hexagonal Array model for unidirectional composites was an important part of the research. Progress in these theoretical aspects of the program is summarized. The report also describes achievements in the experimental program.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1992
Accession Number
ADA253437

Entities

People

  • George J. Dvorak
  • Yeia A. Bahei-el-din

Organizations

  • Rensselaer Polytechnic Institute

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Human Systems
  • Space

DTIC Thesaurus Topics

  • Ceramic Materials
  • Composite Materials
  • Computational Science
  • Constitutive Equations
  • Creep
  • Fabrication
  • Laminates
  • Manufacturing
  • Materials
  • Materials Processing
  • Materials Science
  • Measurement
  • Mechanical Working
  • Mechanics
  • Metal Matrix Composites
  • Standards
  • Stress Strain Relations

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Reinforced Composite Materials
  • Technical Research and Report Writing.