Numerical analysis on hydrogen diffusion in solid around the crack tip

Toshimitsu Yokobori, Takenao Nemoto, Koji Sato, Tetsuya Yamada

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

Construction of physical model and numerical analysis were carried out concerning hydrogen diffusion in solid under the elastic and elastic-plastic local stress field. These analyses showed that hydrogen diffuses and concentrates at the site of the elastic-plastic boundary in the direction of crack length, when the gradient of the initial density of hydrogen exists in this region. The characteristic of hydrogen concentration in this region is accelerated when yield stress becomes larger. These analytical results were related to the sensitivity of corrosion cracking.

Original languageEnglish
Pages (from-to)2120-2127
Number of pages8
JournalNippon Kikai Gakkai Ronbunshu, A Hen/Transactions of the Japan Society of Mechanical Engineers, Part A
Volume59
Issue number565
Publication statusPublished - 1993 Sep
Externally publishedYes

ASJC Scopus subject areas

  • Mechanical Engineering

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