In the present paper, the multiaxial critical plane-based criterion proposed by Carpinteri et al. is employed in conjunction with the varea-parameter model by Murakami and Yanase for the fatigue assessment of high strength steels, where the influence of non-metallic inclusions on fatigue life is taken into account. An experimental campaign, available in the literature and performed on AISI 4140 steel specimens, is analysed to evaluate the criterion accuracy. The obtained results in terms of fatigue lifetime are compared with those experimentally obtained, showing a quite satisfactory agreement.

A novel methodology for fatigue assessment of high strength steels with non-metallic inclusions

Ronchei C.;
2021

Abstract

In the present paper, the multiaxial critical plane-based criterion proposed by Carpinteri et al. is employed in conjunction with the varea-parameter model by Murakami and Yanase for the fatigue assessment of high strength steels, where the influence of non-metallic inclusions on fatigue life is taken into account. An experimental campaign, available in the literature and performed on AISI 4140 steel specimens, is analysed to evaluate the criterion accuracy. The obtained results in terms of fatigue lifetime are compared with those experimentally obtained, showing a quite satisfactory agreement.
AISI 4140 steel
fatigue strength
finite life
high strength steel
non-metallic inclusions
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.11770/334045
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