Propagation of "small fatigue crack" initiated from notch-root

Furuya Yasubumi, Shimada Heihachi

研究成果: Article査読

9 被引用数 (Scopus)

抄録

Recently, early stage of initiated fatigue crack propagation, so-called, "small crack" propagation behavior from notch-root is becoming more and more important for the developement of improved prediction of fatigue life of structural components. In the present paper, fine-grid-method which was already presented in the previous paper was applied to this problem. Special attention was given to the crack-tip strain changes of "small crack" engulfed in the plastic field of the notch. The relationship between fatigue crack propagation rate, da dN, and stress intensity factor range, ΔK, as well as local crack-tip strain range, Δε{lunate}T, which was previously proposed by the authors were investigated.

本文言語English
ページ(範囲)41-48
ページ数8
ジャーナルEngineering Fracture Mechanics
19
1
DOI
出版ステータスPublished - 1984

ASJC Scopus subject areas

  • 材料科学(全般)
  • 材料力学
  • 機械工学

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