Characteristics of fatigue life and damage accumulation of short fiber-reinforced polymer composites

A. Toshimitsu Yokobori, Hidetoshi Takeda, Takeshi Adachi, J. C. Ha, Takeo Yokobori

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

The relation between fatigue life and damage accumulation of fiber-reinforced polymer composite (FRP) is not yet clarified. For practical use of FRP, it is necessary to relate the fatigue life to the mechanism of damage accumulation. Damage formation is controlled by the mechanical behavior of the interface between the matrix and fiber. We used short glass fiber-reinforced polycarbonate composite in our experiments. By using an in situ (real time) observational fatigue testing machine, we investigated the relationship between fatigue life and damage accumulation. From these results, the fatigue life of this material was found to be dominated by damage accumulation which results from microfracture at the interface between the matrix and fiber. This microfracture is controlled by a cycle-dependent mechanism.

Original languageEnglish
Pages (from-to)152-167
Number of pages16
JournalASTM Special Technical Publication
Volume1290
Publication statusPublished - 1996
Externally publishedYes

Keywords

  • Chopped fiber
  • Cycle-dependent mechanism
  • Damage formulation
  • Discontinuous fiber
  • Fatigue life
  • Glass fiber
  • Injection molding compound
  • Interface
  • Polycarbonate
  • Short fiber-reinforced polymer composite

ASJC Scopus subject areas

  • Engineering(all)

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