A frequency-domain critical plane criterion is here employed to estimate fatigue life of smooth metallic structural componentsunder multiaxial random loading. The procedure set out in the present paper consists of the following three steps: (i) definition ofthe critical plane; (ii) PSD evaluation of an equivalent normal stress; (iii) determination of fatigue life. The criterion is theoreticallydeveloped and numerically validated by employing experimental fatigue results for structural steel subjected to combined bendingand torsion.

Critical plane criterion for fatigue life calculation: time and frequency domain formulations

RONCHEI, Camilla;
2015

Abstract

A frequency-domain critical plane criterion is here employed to estimate fatigue life of smooth metallic structural componentsunder multiaxial random loading. The procedure set out in the present paper consists of the following three steps: (i) definition ofthe critical plane; (ii) PSD evaluation of an equivalent normal stress; (iii) determination of fatigue life. The criterion is theoreticallydeveloped and numerically validated by employing experimental fatigue results for structural steel subjected to combined bendingand torsion.
critical plane approach; frequency-domain; multiaxial fatigue; random loading; smooth specimen
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.11770/304665
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