, Volume 44, Issue 5, pp 518-524

Assessment of J-integral near the tip of a circumferential edge crack in a thick-walled pipe on rapid cooling of its inner surface

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The brittle fracture resistance of a pipe with the circumferential edge crack on thermal shock is determined by a maximum J-integral value at the stage of plastic strain development near the crack tip. In an elastoplastic metal, the value of J-integral on thermal shock reaches its maximum with an increase in strain energy near the crack tip.

Translated from Problemy Prochnosti, No. 5, pp. 76 – 84, September – October, 2012.