Evaluation for fatigue limit reliability from consideration of hardness scatter (1st report, its application to plain specimen of high strength steel under stress ratio = -1)

Tatsujiro Miyazaki, Hiroshi Noguchi, Masaharu Kage, Ryoichi Imai

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Abstract

In this paper, a quantitative prediction method for the fatigue limit reliability is proposed by using statistical characteristics of hardness in a small region and mechanical condition in a small region based on a defect size distribution and a certain stress applied to a defect. And rotating bending and push-pull fatigue under R=-1 are carried out on quenched-tempered 0.5% carbon steels, whose average hardness is about Hv≃600. Comparing a predicted fatigue limit reliability with experimental data, the applicability of the present proposed method is examined and confirmed.

Original languageEnglish
Pages (from-to)364-372
Number of pages9
JournalNippon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
Volume69
Issue number2
Publication statusPublished - Feb 1 2003

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High strength steel
Hardness
Fatigue of materials
Defects
Carbon steel

All Science Journal Classification (ASJC) codes

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

Cite this

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AU - Miyazaki, Tatsujiro

AU - Noguchi, Hiroshi

AU - Kage, Masaharu

AU - Imai, Ryoichi

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