Theory of the gradual accumulation of fatigue damage in metals under proportional cyclic loading

E. B. Zavoyilichinskaya

Izvestiya MGTU MAMI ›› 2015, Vol. 9 ›› Issue (2-4) : 68 -75.

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Izvestiya MGTU MAMI ›› 2015, Vol. 9 ›› Issue (2-4) : 68 -75. DOI: 10.17816/2074-0530-67134
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Theory of the gradual accumulation of fatigue damage in metals under proportional cyclic loading

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Abstract

The paper provides system of hypotheses about the development of defects in metals at micro, meso and macro levels (such as fragile micro- and macro-cracks) under arbitrary proportional (simple) cyclic loading. The system is formulated on the basis of extensive experimental and theoretical material about fatigue failure of metals and metal alloys. For uniaxial loading the symmetrical correlations of phenomenological model of brittle fatigue loading of metals are written. The correlations cover the entire process step by step with the release of a typical state - the type of defect.

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proportional cyclic loading / fragile fatigue micro and macro cracks / damage / durability / fatigue curve

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E. B. Zavoyilichinskaya. Theory of the gradual accumulation of fatigue damage in metals under proportional cyclic loading. Izvestiya MGTU MAMI, 2015, 9(2-4): 68-75 DOI:10.17816/2074-0530-67134

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