Abstract
Crack propagation under alternating loading is investigated. Relations between the growth rate of a fatigue defect and loading parameters and the expression for the stress intensity factor are derived for compression of a cracked solid taking into account the possible contact of the crack faces. A model for the deformation of a small region near the crack tip is proposed which allows one to formulate the conditions of residual opening of a growing fatigue crack. The experimental data obtained in tests of steel samples are compared with the results of calculation using the developed procedure.
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Translated from Prikladnaya Mekhanika i Tekhnicheskaya Fizika, Vol. 49, No. 5, pp. 190–198, September–October, 2008.
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Tikhomirov, V.M. Crack growth under alternating loading. J Appl Mech Tech Phy 49, 864–871 (2008). https://doi.org/10.1007/s10808-008-0106-3
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DOI: https://doi.org/10.1007/s10808-008-0106-3