Fracture toughness diagrams of a notched body |
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Authors: | Yu G Matvienko O A Priimak |
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Affiliation: | (1) Blagonravov Institute of Engineering Science, Russian Academy of Sciences, Moscow, Russia;(2) DOAO TsKBN, Podolsk, Russia |
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Abstract: | To describe fracture toughness diagrams of notched bodies, a model of the cohesion zone near the notch root and an averaging
criterion of stresses in this zone were employed. The geometric stress concentration factor and biaxiality coefficient affect
greatly the shape of fracture toughness diagram. The notch root critical stress intensity factor is a decreasing function
of geometric stress concentration factor.
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Translated from Problemy Prochnosti, No. 5, pp. 142–148, September–October, 2006.
Report on International Conference “Dynamics, Strength, and Life of Machines and Structures” (1–4 November 2006, Kiev, Ukraine). |
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Keywords: | notch stress concentration averaging criterion fracture toughness diagram |
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