Life prediction based on fatigue-environment damage under multiaxial thermo-mechanical loading

被引：2

作者：

Qian, Cheng ^{[1
]}

Shang, De-Guang ^{[1
]}

Li, Dao-Hang ^{[2
]}

Li, Wei ^{[1
]}

Li, Wen-Long ^{[1
]}

Mao, Zheng-Yu ^{[1
]}

Zhou, Quan ^{[1
]}

Wang, Jin-Jie ^{[1
]}

Chen, Chao-Lin ^{[1
]}

机构：

[1] Beijing Univ Technol, Coll Mech & Energy Engn, Beijing 100124, Peoples R China

[2] Tiangong Univ, Sch Elect Engn, Tianjin 300387, Peoples R China

来源：

ENGINEERING FRACTURE MECHANICS | 2024年 / 308卷

基金：

中国国家自然科学基金;

关键词：

Multiaxial thermo-mechanical fatigue; Life prediction; Damage mechanism; Titanium alloy; CAST-IRON; BEHAVIOR; TEMPERATURE; SUPERALLOY; OXIDATION; ALLOY; STEEL; CREEP;

D O I：

10.1016/j.engfracmech.2024.110357

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

In this paper, the competition mechanism between protectiveness and harmfulness of oxidation, as well as the effects of cycle period, mean stress and temperature on the damage behavior of TA15 titanium alloy are revealed under multiaxial thermo-mechanical fatigue loading. Based on the damage mechanism, a high-temperature environmental damage model is proposed under multiaxial thermo-mechanical fatigue loading first, then a life prediction method is developed by combining a multiaxial fatigue damage model. The experimental verification results under uniaxial and multiaxial thermo-mechanical fatigue loadings showed that almost all of the prediction errors are within a factor of 2.

引用

页数：18

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