Combined high and low cycle fatigue life prediction model based on damage curve method considering loading interaction effect

Abstract

Through analyzing the characteristics of the Miner’s rule and the Manson-Halford (M-H) model, a nonlinear fatigue damage accumulation model is established based on the damage curve method under combined high and low cycle fatigue loading. In this model, an interaction factor related to the maximum stress and high cycle stress range is proposed to consider the loading interaction effect. Furthermore, the proposed model does not require any additional material parameters except for the S-N curve parameters. The experimental data of five materials, including TC11 alloy, 2024-T3 aluminum alloy, 45 steel, LY12-CZ aluminum alloy, and GH4033 Ni-based alloy, are introduced to verify the proposed model. Compared with the Miner’s rule and the M-H model, most of the prediction results by the proposed model are within the life factor range of 2, implying the established model has higher prediction accuracy.

A modified nonlinear cumulative damage model for combined high and low cycle fatigue life prediction

“…To address the HCF‐LCF interaction damage, an improved CCF life prediction method was presented to combine it with a damage mechanics method 11 . Hou et al 34 developed a modified life prediction approach under CCF loadings based on the damage curve approach, in which the loading interaction between HCF‐LCF is modeled. Based on Miner's rule, Liu et al 35 built a life prediction model under CCF loadings by integrating a coupled damage coefficient into the interaction damage term.…”

Application of continuum damage mechanics in fatigue assessment of A516 steel specimens considering residual stresses

“…Yang et al (2023) developed a damage model to explain the damage evolution of quasi-brittle materials under quasi-static uniaxial tensile loading. Hou et al (2023) proposed a nonlinear fatigue damage accumulation model based on the damage curve method under combined high and low cycle fatigue loading. Zhao et al (2023) investigated effect of size of segmental tunnel linings on damage evolution mechanism using finite element method.…”

“…(2023) developed a damage model to explain the damage evolution of quasi-brittle materials under quasi-static uniaxial tensile loading. Hou et al. (2023) proposed a nonlinear fatigue damage accumulation model based on the damage curve method under combined high and low cycle fatigue loading.…”

Theory and methods of constructing equations for the evolutionary damageability of materials

“…Therefore, PM rule (4,5) is not completely reliable for predict the rupture moment. Its various modifications (Hou et al., 2023; Zhu et al., 2022; Yue et al., 2021) improve the prediction accuracy.…”