DOI https://doi.org/10.15407/pmach2017.04.031
Journal Journal of Mechanical Engineering – Problemy Mashynobuduvannia
Publisher A. Podgorny Institute for Mechanical Engineering Problems
National Academy of Science of Ukraine
ISSN 0131-2928 (Print), 2411-0779 (Online)
Issue Vol. 20, no. 4, 2017 (December)
Pages 31-37
Cited by J. of Mech. Eng., 2017, vol. 20, no. 4, pp. 31-37



N. M. Kalantarly, Institute of Mathematics and Mechanics of Azerbaijan National Academy of Sciences (9, F. Agaev St., Baku, AZ1141, Azerbaijan), e-mail: nailyak1975@gmail.com



The problem of finding an equally strong hole form in the crack tip and its influence on the development of a crack are considered. A criterion and method for solving the problem of preventing the brittle fracture of a body weakened by a longitudinal shear crack are proposed. The condition for brittle fracture is obtained.


Keywords: crack, longitudinal shift, optimal hole, principle of equal strength



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Received 19 October 2017

Published 30 December 2017