QUANTITATIVE PREDICTION OF ENVIRONMENTALLY ASSISTED CRACKING BASED ON CRACK TIP STRAIN RATE.

Tetsuo Shoji

研究成果: Conference article査読

23 被引用数 (Scopus)

抄録

Based upon strain analysis around a growing crack tip by Finite Element Method, crack tip strain rate is evaluated in relation to crack propagation rate. FEM results show that a strain increment, DELTA delta , with crack extension, DELTA a, tend to have a value of unity when an incremental increase in load line displacement DELTA V//L with crack growth is small, which is a case for environmentally assisted cracking such as SCC, CF and SSRT. Therefore, the strain rate induced by crack advance is given by delta //c//r//a//c//k //t//i//p equals a/a//0 where a is a crack growth rate in an inert environment and a//0 is a numerical constant.

本文言語English
ページ(範囲)127-142
ページ数16
ジャーナルAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
99
出版ステータスPublished - 1985 12月 1

ASJC Scopus subject areas

  • 機械工学

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