Thermal stresses and thermal expansion coefficients of short fiber composites with sliding interfaces

I. Jasiuk, T. Mura, E. Tsuchida

Research output: Contribution to journalArticle

Abstract

An analysis is made of the thermal stresses and effective thermal expansion coefficients of the composites in which the fiber-matrix interface is allowed to slip. The thermal stresses are evaluated by introducing into the fiber an eigenstrain which corresponds to the strain due to the mismatch of the thermal expansion coefficients. For simplicity, the effect of friction is neglected. The Boussinesq-Papkovich displacement potential method is used in the analysis. Then, the results for a single sliding fiber are used to predict the average thermal expansion coefficients of a composite containing a finite concentration of fibers. It is observed that sliding at the fiber-matrix interface causes higher stress concentrations and significantly affects the average coefficients of thermal expansion of the composite.

Original languageEnglish (US)
Pages (from-to)96-100
Number of pages5
JournalJournal of Engineering Materials and Technology, Transactions of the ASME
Volume110
Issue number2
DOIs
StatePublished - Apr 1988
Externally publishedYes

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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