Abstract
The main results of investigations of direct (effect of the friction and wear processes on the variation of the fatigue resistance characteristics) and reversed (effect of cyclic stresses on intensification of wear) effects are presented. The diagram of limiting states of the force systems characterized by complex-wear-fatigue-damage is analyzed. The problems of calculating the strength and endurance of these systems are discussed. It is shown that, in particular, in contact-mechanical friction (CMF) and friction-mechanical fatigue (FMF) under specific conditions the force systems can operate reliably with a strength margin factor smaller than unity. An equation for calculating the endurance and FMF is derived.
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