On a study of the (ΔT)c and C* integrals for fracture analysis under non-steady creep

R. B. Stonesifer, S. N. Atluri

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Abstract

The validity of the parameter (ΔT)c (which was previously introduced by one of the authors), its meaning, and its calculation, in the analysis of cracked bodies under non-steady creep conditions, are studied. Comparisons are made with the widely used parameter C*, which is valid for steady-state creep. An efficient finite element method for general, small-strain, elastic/viscoplastic analyses is described and the results of an example calculation for a standard compact specimen are presented and discussed.

Original languageEnglish
Pages (from-to)625-643
Number of pages19
JournalEngineering Fracture Mechanics
Volume16
Issue number5
DOIs
StatePublished - 1982

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