Critical plane based method for multiaxial fatigue analysis of 316 stainless steel

Mixed‐mode I/II stress intensity factors of a biaxially loaded plate with a central slant frictional crack: An analytical comprehensive solution

“…Therefore, it would be recommended to include a comparison with actual experimental data (measured on real specimens). There are few experimental studies that examine the impact of multiaxial loading on fatigue life, for example, in the following tests: (a) plain cylindrical specimens under cyclic tension‐compression loading with cyclic torsion 39,40 ; (b) plain tubular specimens under cyclic axial loading with inner pressure 41 ; (c) notched round bars under combined bending and torsion 42 ; (d) thin‐walled hollow cylinders with a notch under proportional and non‐proportional cyclic tension‐compression‐torsion loadings 43 ; and (e) hollow cylinders with a central hole under cyclic uniaxial and biaxial loading 44 . The relevant experiments found in the literature (a) concern mostly the identification of the orientation of the growth of the initiated surface crack and its subsequent growth rate, and (b) lack knowledge with regard to the friction between the surfaces of the initiated crack.…”

Multiaxial fatigue life prediction model with relative stress gradient and size effect

“…This plane is called the critical plane by research scholars. 23 Therefore, the study is focused more on finding the critical plane, which is related to fatigue damage, analyzing the stress/strain component law, and establishing the relationship between fatigue damage parameter (DP) and fatigue life on this basis, as follows:…”

“…Nowadays, available research shows that when fatigue damage occurs in materials, the damage always occurs in a plane at a certain angle. This plane is called the critical plane by research scholars 23 . Therefore, the study is focused more on finding the critical plane, which is related to fatigue damage, analyzing the stress/strain component law, and establishing the relationship between fatigue damage parameter (DP) and fatigue life on this basis, as follows: Socie 24 conducted an early study on the critical plane method, and they believed that the maximum shear strain in a cyclic loading over has the greatest effect on fatigue damage.…”

Closed‐form solution for the Fatemi‐Socie extended critical plane parameter in case of linear elasticity and proportional loading

“…Several methods exist to assess fatigue damage, among them two macro‐categories can be identified: energy‐based methods 9–12 and stress or strain‐based methods 13–20 . Among the above mentioned categories, in the context of local damage methods, critical plane (CP) approaches gained a lot of popularity in recent years 21–25 . Methods based on critical plane require evaluating the plane orientation, which is subjected to the most severe damage.…”