Experimental study of D16AT alloy deformation under periodic loading

V. I. Kapustin, V. P. Gileta

Novosibirsk State Technical University, Novosibirsk, 630092, Russia

Abstract: An experimental procedure and results of an experimental study of the kinetics of the strained state of a material under periodic uniaxial loading are reported. Diagrams of the principal components of the total strain tensor for an asymmetric periodic “soft” regime of tension-compression of the samples are presented. Specific features of deformation revealed under periodic asymmetric loading of the samples can be used to formulate a criterion of fatigue fracture of materials and to identify the mechanism of strain hardening of pre-fracture zones in machine elements.

Keywords: stress, strain, compaction, fatigue, pre-fracture zone, strain hardening.

UDC: 621:539.43.001.24

Received: 17.12.2009
Accepted: 29.10.2010

 English version: Journal of Applied Mechanics and Technical Physics, 2011, 52:5, 841–847

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