?The Applicability of the Manson-Coffin Law and Miner's Law to Extremely Low Cycle Fatigue

Katsunori Shimada, Jim Komotori, Masao Shimizu

Research output: Contribution to journalArticle

29 Citations (Scopus)

Abstract

Attention has been focussed on the characteristics of the fatigue life of annealed low carbon steel in the extremely low cycle fatigue regime. In this regime, a transition of the fracture mode occurs from the surface to internal cracking with an increase in the plastic strain range. Results show that in this regime the final fracture occurs at a strain cycle count less than that expected from the Manson-Coffin law for an ordinary low cycle fatigue regime in which the development of small surface cracks leads to the fracture of the specimen. Such a reduction in fatigue life is caused by the cracking of pearlite inside the material at a high plastic strain range. The applicability of Miner's law to the prediction of the fatigue life under a variable plastic strain amplitude in the extremely low cycle fatigue regime has also been discussed.

Original languageEnglish
Pages (from-to)1178-1185
Number of pages8
JournalTransactions of the Japan Society of Mechanical Engineers Series A
Volume53
Issue number491
DOIs
Publication statusPublished - 1987

Keywords

  • Extremely Low Cycle Fatigue
  • Fracture Mode Transition
  • Low Carbon Steel
  • Manson-Coffin Law
  • Miner's Law
  • Pearlite Cracking

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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