This article is cited in 2 papers

Extension of mixed-mode fatigue cracks in steel samples

V. M. Tikhomirov, P. G. Surovin

Siberian State University of Transport Communications, Novosibirsk, 630049

Abstract: Experimental studies of the extension of mixed-mode fatigue cracks were performed on rail steel samples. The direction of growth of fatigue cracks was studied for three types of loading: alternate transverse shear and transverse and longitudinal shears under compressing stresses. For all tested samples, the following common feature in the extension of fatigue cracks was established: the direction of crack growth coincides with the propagation direction of the principal stresses having minimum absolute values.

Keywords: fatigue crack, transverse shear, longitudinal shear.

UDC: 620.178.6

Received: 18.04.2003

 English version: Journal of Applied Mechanics and Technical Physics, 2004, 45:1, 112–117

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