Interaction of Particulate and Transformation Toughening

Abstract

A theoretical study is made of the interaction between the fracture toughening effects of crack-bridging ductile particles and phase-transforming particles embedded in a brittle matrix. It is found that in certain parametric ranges the interaction can be synergistic, with an increase in toughness produced that is greater than the sum of the increases that would be provided separately by the two types of reinforcement. Quantitative results are provided for the toughening in terms of the individual toughening effects and coupling parameters that depend on the properties of the uncoupled systems.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1987
Accession Number
ADA189321

Entities

People

  • Bernard Budiansky
  • John C. Amazigo

Organizations

  • Harvard University

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Applied Mechanics
  • Ceramic Materials
  • Ceramic Matrix Composites
  • Composite Materials
  • Couplings
  • Crack Tips
  • Cracks
  • Displacement
  • Equations
  • Integrals
  • Materials
  • Mechanics
  • Modulus Of Elasticity
  • Particles
  • Particulates
  • Phase Transformations
  • Stresses

Fields of Study

  • Physics

Readers

  • Materials Science (Mechanical Engineering).
  • Plasma Physics / Magnetohydrodynamics
  • Reinforced Composite Materials