Interaction of local elastoplasticity with hydrogen: Embrittlement effects

P. Sofronis, J. Lufrano

研究成果: Contribution to journalArticle査読

20 被引用数 (Scopus)

抄録

The finite element method was used to solve the coupled elastic-plastic boundary value problem and transient hydrogen diffusion initial boundary value problem. Solutions were obtained at room temperature and under plane strain deformation in the neighborhood of a blunting crack tip under small scale yielding conditions and in the neighborhood of a rounded notch in a 4-point bend specimen. A discussion of the finite element results in conjunction with different mechanisms of hydrogen embrittlement is presented. If a critical amount of hydrogen is required for hydrogen induced crack initiation, the present results predict locations of crack initiation sites at steel bend specimens which are in agreement with experimental observations on the occurrence of the first microcracking event.

本文言語英語
ページ(範囲)41-47
ページ数7
ジャーナルMaterials Science and Engineering A
260
1-2
DOI
出版ステータス出版済み - 2 1999
外部発表はい

All Science Journal Classification (ASJC) codes

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

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