The effect of material hardness and mean stress on the fatigue limit of steels containing small defects

Y. Kondo, C. Sakae, Masanobu Kubota, T. Kudou

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Fatigue tests on material containing small defects were performed under a wide range of mean stress for three grades of steels with different hardness. The ΔKth of small defects had a peculiar dependency on material hardness and mean stress, which was quite different from those of long cracks or plain specimens. The crack closure of short cracks was measured. It was shown that the formation of the crack closure was affected by the material hardness and mean stress. This behaviour of crack closure resulted in characteristic fatigue limit properties of materials containing small defects.

Original languageEnglish
Pages (from-to)675-682
Number of pages8
JournalFatigue and Fracture of Engineering Materials and Structures
Volume26
Issue number8
DOIs
Publication statusPublished - Aug 1 2003

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Materials Science(all)

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