Prediction of high-cycle fatigue life reliability of aluminum cast alloy from statistical characteristics of defects at meso-scale

Tatsujiro Miyazaki, Hyogyoung Kang, Hiroshi Noguchi, Keisaku Ogi

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

In this paper, a growth rate law of a small fatigue crack of an arbitrary metal and a method for predicting a size distribution of spheroidal defects cut by a specimen are proposed. And then, by combining the crack growth rate law and the prediction method for the surface defect size distribution, a method for predicting a high-cycle fatigue life reliability of a metal with defects is proposed. Rotating bending fatigue tests of plain specimens with/without a small blind hole (0.3 mm in diameter, 0.15 mm in depth) are carried out on an aluminum cast alloy JIS AC4B-T6 with eutectic Si, Fe compounds and porosities. By comparing analyzed results with experimental ones, the validity of the present method is examined.

Original languageEnglish
Pages (from-to)152-162
Number of pages11
JournalInternational Journal of Mechanical Sciences
Volume50
Issue number2
DOIs
Publication statusPublished - Feb 1 2008

Fingerprint

cast alloys
fatigue life
Aluminum
aluminum alloys
cracks
Metals
Fatigue of materials
bending fatigue
Defects
cycles
fatigue tests
Surface defects
defects
surface defects
predictions
plains
eutectics
metals
Eutectics
Crack propagation

All Science Journal Classification (ASJC) codes

  • Civil and Structural Engineering
  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Prediction of high-cycle fatigue life reliability of aluminum cast alloy from statistical characteristics of defects at meso-scale. / Miyazaki, Tatsujiro; Kang, Hyogyoung; Noguchi, Hiroshi; Ogi, Keisaku.

In: International Journal of Mechanical Sciences, Vol. 50, No. 2, 01.02.2008, p. 152-162.

Research output: Contribution to journalArticle

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