Deformation and Fracture of Fiber-Reinforced Ceramic Composites

Abstract

Theoretical work on crack and damage growth in ceramic composites is summarized. Micromechanical models for viscoelastic behavior and crack growth in ceramics with a viscous grain boundary phase are developed. The emphasis is on extending earlier work for the limiting cases of elastic or viscous behavior to realistic viscoelasticity. Relationships for creep functions and crack speed are derived. Predictions for creep of ceramics with growing microcracks are made and compared with some experimental data. A publication on delamination analysis is in the appendix.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1990
Accession Number
ADA233031

Entities

People

  • R. A. Schapery

Organizations

  • Texas A&M University

Tags

Communities of Interest

  • Air Platforms
  • C4I
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Ceramic Matrix Composites
  • Composite Materials
  • Crystal Structure
  • Delamination
  • Experimental Data
  • Finite Element Analysis
  • Geometry
  • Grain Boundaries
  • Laminates
  • Material Degradation Processes
  • Materials
  • Mechanical Properties
  • Mechanics
  • Modulus Of Elasticity
  • Three Dimensional
  • Two Dimensional

Fields of Study

  • Materials science

Readers

  • Fluid Dynamics.
  • Structural Health Monitoring of Composite Structures.