Fatigue life estimation under random loading using the energy criterion

A procedure for estimating the useful life of a component for a given (admissable) probability of fatigue fracture origination under random loading is presented. The method uses material constants obtained from the S/N and cyclic stress/strain curves, standard deviation and probability density distr...

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Veröffentlicht in:	International journal of fatigue 1985, Vol.7 (1), p.39-44
1. Verfasser:	Kliman, V.
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Buildings. Public works Condensed matter: structure, mechanical and thermal properties Exact sciences and technology Fatigue fatigue damage accumulation fatigue life prediction fracture hysteresis energy loading Mechanical and acoustical properties of condensed matter Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology mechanical strength Metals. Metallurgy Physics random loading Strength of materials (elasticity, plasticity, buckling, etc.) stress strain relations Structural analysis. Stresses
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Beschreibung
Zusammenfassung:	A procedure for estimating the useful life of a component for a given (admissable) probability of fatigue fracture origination under random loading is presented. The method uses material constants obtained from the S/N and cyclic stress/strain curves, standard deviation and probability density distribution of the loading process and a macroblock of harmonic cycles obtained by applying the rainflow cycle counting method to the random loading process. Theoretical and experimental lives are found to exhibit good agreement.
ISSN:	0142-1123 1879-3452
DOI:	10.1016/0142-1123(85)90006-4