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

Tetsuo Shoji

Research output: Contribution to journalConference articlepeer-review

18 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)127-142
Number of pages16
JournalAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
Volume99
Publication statusPublished - 1985 Dec 1

ASJC Scopus subject areas

  • Mechanical Engineering

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