An enhanced multiaxial low-cycle fatigue life model

被引：2

作者：

Zhang, Chao ^{[1
]}

Liu, Zhi ^{[1
]}

Liu, Ying ^{[1
]}

Xiong, Xingjia ^{[1
]}

Liao, Tao ^{[1
]}

Ye, Nanhai ^{[1
]}

机构：

[1] Hunan Univ, Key Lab Adv Design & Simulat Technol Special Equip, Minist Educ, Changsha 410082, Peoples R China

来源：

MECHANICS RESEARCH COMMUNICATIONS | 2024年 / 140卷

基金：

中国国家自然科学基金;

关键词：

Multiaxial low-cycle fatigue model; Critical plane method; Shear stress; Mean stress; Fatigue life prediction; METALLIC MATERIALS; PREDICTION; BEHAVIOR; PHASE;

D O I：

10.1016/j.mechrescom.2024.104309

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

To improve the accuracy of predicting multiaxial fatigue life, an enhanced multiaxial low-cycle fatigue life model is proposed based on the FS model. This model introduces a correction parameter for the stress-related term to consider the influence of normal stress and shear stress on the critical plane. The feasibility of the model is investigated, and it is validated using fatigue test data from eight different materials. The results indicate that the proposed model is applicable for both symmetric and asymmetric loading conditions under constant amplitude loading, with highly accurate fatigue life prediction results.

引用

页数：8

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