Multiaxial high-cycle fatigue failure and life prediction based on critical plane method

Abstract

Multiaxial high-cycle fatigue failure criterion and life prediction is important for structural components under complex low stress. A new multiaxial high-cycle fatigue damage parameter based on the plane of maximum shear stress is proposed, which includes the maximum shear stress amplitude, normal stress amplitude and maximum equivalent normal stress. The maximum equivalent normal stress is defined in the form of SWT stress function considering the influence of mean stress. The feasibility of the proposed failure criterion and life prediction model is verified by test data of different materials. The predicted results show that the life prediction error of the proposed fatigue model is basically within three times by comparing with McDiarmid, Matake, Crossland and Papadopoulos fatigue models.

A rolling contact fatigue life prediction model for bearing steel considering its gradient structure due to cyclic hardening

“…It has been demonstrated that critical plane-based parameters are more accurate than parameters from scalar criteria such as von Mises stress, or strain energy density criterion when used for multiaxial fatigue life estimation of some elastomeric materials (Mars and Fatemi, 2005a;2005b) and structural components (Carpinteri et al, 2009). Notably, critical plane approaches are proved to be in good agreement with these multiaxial fatigue test results (Averbeck and Kerscher, 2017a;2017b;Vaculka et al, 2018;Wang et al, 2022). For critical plane approaches, the fatigue parameter can be defined in many ways, e.g., stress-, strain-, and energy-based.…”