A robust life prediction model for a range of materials under creep-fatigue interaction loading conditions

被引：6

作者：

Zhang, Tianyu ^{[1
,2
,5
]}

Wang, Xiaowei ^{[1
,2
]}

Xia, Xianxi ^{[3
,4
]}

Jiang, Yong ^{[1
,2
]}

Zhang, Xiancheng ^{[2
,3
]}

Zhao, Liguo ^{[5
,6
]}

Roy, Anish ^{[5
]}

Gong, Jianming ^{[1
,2
]}

Tu, Shantung ^{[2
,3
]}

机构：

[1] Nanjing Tech Univ, Sch Mech & Power Engn, Nanjing 211816, Peoples R China

[2] Nanjing Tech Univ, Inst Reliabil Ctr Mfg OcM, Natl Engn Tech Res Ctr Biotechnol, Nanjing 211816, Peoples R China

[3] East China Univ Sci & Technol, Key Lab Pressure Syst & Safety, Minist Educ, Shanghai 200237, Peoples R China

[4] Suzhou Nucl Power Res Inst, Suzhou Xihuan Rd 1688, Suzhou 215004, Peoples R China

[5] Loughborough Univ, Wolfson Sch Mech Elect & Mfg Engn, Epinal Way, Loughborough LE11 3TU, England

[6] Nanjing Univ Aeronaut & Astronaut, Coll Energy & Power Engn, Nanjing 210016, Peoples R China

来源：

INTERNATIONAL JOURNAL OF FATIGUE | 2023年 / 176卷

基金：

中国国家自然科学基金;

关键词：

Creep-fatigue interaction; Robust life prediction model; Creep strain; Damage; INTERACTION BEHAVIOR; STAINLESS-STEEL; PART I; DEFORMATION; STRAIN; DUCTILITY; STRESS; DAMAGE; 316H;

D O I：

10.1016/j.ijfatigue.2023.107904

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This paper develops a robust creep-fatigue interaction (CFI) life prediction model which is superior to the existing methods. Specifically, the newly proposed creep damage incorporates the effect of creep strain, which introduces the critical creep strain energy density rate and creep strain evolution term. The predictions are carried out for various materials, including martensitic heat-resistant steel, austenitic stainless steel, nickel-based superalloy, and different loading conditions, including conventional CFI and hybrid-controlled CFI loadings. The results show that all of the tested data falls within +/- 2.5 error band, demonstrating the broad applicability of the proposed model. Based on the proposed model, a continuous CFI failure envelope independent of material, temperature, and CFI loading type is proposed, with almost all the data points lying outside the envelope.

引用

页数：16

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