Examination of fatigue characteristics of aluminum cast alloy from meso-level consideration (2nd report, prediction for the fatigue limit reliability of plain specimen of metal containing different sorts of inhomogenities under R=-1)

Tatsujiro Miyazaki, Hiroshi Noguchi, Keisaku Ogi, Yuta Aono

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

In this paper, a quantitative prediction method for the fatigue limit reliability of metal with different sorts of inhomogenities is proposed. The method is based on the stress-strength model which consists of "statistical characteristics of hardness in a small region" and "statistical characteristics of a mechanical condition in the small region containing the defect under a cyclic stress". The method was applied to the aluminum cast alloy JIS AC 4 B-T 6, which has eutectic Si, Fe compound and porosity in the material as inhomogenities. The fatigue strength at 107 stress cycles was defined as the fatigue limit. Rotating bending fatigue tests of plain specimens were also caried out. The validity of the present method was confirmed by comparing analyzed results with experimental results.

Original languageEnglish
Pages (from-to)1699-1707
Number of pages9
JournalNihon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
Volume71
Issue number12
DOIs
Publication statusPublished - Dec 2005

All Science Journal Classification (ASJC) codes

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

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