Plane Strain Crack Arrest Characterization of Steels

The data presently available on the plane strain crack arrest toughness (KIa) of steels are reviewed, using as a definition of KIa the stress intensity factor, K, a short time after a run-arrest segment of rapid crack extension. The data indicate that KIa, defined in this way, is a material property...

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Bibliographic Details
Published in:Journal of pressure vessel technology 1975-11, Vol.97 (4), p.291-298
Main Authors: Crosley, P. B, Ripling, E. J
Format: Article
Language:English
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Summary:The data presently available on the plane strain crack arrest toughness (KIa) of steels are reviewed, using as a definition of KIa the stress intensity factor, K, a short time after a run-arrest segment of rapid crack extension. The data indicate that KIa, defined in this way, is a material property, i.e., it is independent of the manner in which it is measured. Calculations, available in the literature, on the dependence of dynamic K on a crack velocity are used to justify this invariance. It is also shown that KIa may be the minimum value of toughness, at a given temperrature, as a function of loading rate.
ISSN:0094-9930
1528-8978
DOI:10.1115/1.3454310