A method for determining dynamic stress intensity factors from cod measurement at the notch mouth in dynamic tear testing

T. Nishioka, S. N. Atluri

Research output: Contribution to journalArticle

19 Scopus citations

Abstract

A formula is derived for determining dynamic stress intensity factors directly from crack mouth opening displacements in dynamic tear test specimen. The results obtained by the present estimation method for stationary as well as propagating cracks agree excellently with those directly obtained through a highly accurate moving-singularity finite element method. The present method can also be applied for other types of specimen which have a relatively short edge crack without any loading on the crack surface. The present simple estimation method should be of great value in the experimental measurement of dynamic stress-intensity factors for propagating cracks in (opaque) structural steel dynamic tear test specimens.

Original languageEnglish
Pages (from-to)333-339
Number of pages7
JournalEngineering Fracture Mechanics
Volume16
Issue number3
DOIs
StatePublished - 1982

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