Miner's Rule for Fatigue Life of Short Carbon Fiber Reinforced Poly-Ether-Ether-Ketone

Hiroshi Noguchi, Hironobu Nisitani, Akio Nishizawa, Yun Hae Kim

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


The actual load on mechnical structures does not always have a constant stress amplitude. Therefore, it is very important for the prediction of fatigue life under complex load to investigate whether Miner's rule is valid or not. In this paper, rotating-bending fatigue tests for short carbon-fiber reinforced poly-ether-ether-ketone (CFRPEEK) under two-step loading were carried out to investigate the applicability of Miner's rule. In case of a short fiber reinforced composite like CFRPEEK, the fatigue process should be treated by dividing it into two stages, that is, the one where the fatigue damage concentrates on the edge of the short carbon fiber, and the other where the fatigue damage concentrates on near the fatigue crack's tip. From the result of the experiments, it was concluded that Miner's rule can be applied to the both stages in the short fiber reinforced composites as in the case of metals, and thus Miner's rule holds well under two step loading in CFRPEEK.

Original languageEnglish
Pages (from-to)672-678
Number of pages7
JournalJournal of the Society of Materials Science, Japan
Issue number489
Publication statusPublished - 1994

All Science Journal Classification (ASJC) codes

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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