Fatigue life prediction of notched components under size effect using strain energy reformulated critical distance theory

被引：8

作者：

Shuai, Zhouyang ^{[1
]}

Zhua, Shun-Peng ^{[1
,2
]}

He, Jin-Chao ^{[1
]}

Liao, Ding ^{[1
,3
]}

Correia, Jose ^{[3
]}

Macek, Wojciech ^{[4
]}

Branco, Ricardo ^{[5
]}

Wang, Qingyuan ^{[6
,7
]}

机构：

[1] Univ Elect Sci & Technol China, Sch Mech & Elect Engn, Chengdu 611731, Peoples R China

[2] Inst Elect & Informat Engn UESTC Guangdong, Dongguan 523808, Peoples R China

[3] Univ Porto, Fac Engn, CONSTRUCT, P-4200465 Porto, Portugal

[4] Gdansk Univ Technol, Fac Mech Engn & Ship Technol, 11-12 Gabriela Narutowicza, PL-80233 Gdansk, Poland

[5] Univ Coimbra, Dept Mech Engn, CEMMPRE, P-3030788 Coimbra, Portugal

[6] Sichuan Univ, Coll Architecture & Environm, MOE Key Lab Deep Earth Sci & Engn, Chengdu 610065, Peoples R China

[7] Chengdu Univ, Adv Res Inst, Chengdu 610106, Peoples R China

来源：

INTERNATIONAL JOURNAL OF FATIGUE | 2023年 / 175卷

基金：

中国国家自然科学基金;

关键词：

Notch fatigue; Size effect; Strain energy density; Critical distance theory; Life prediction; FIELD INTENSITY APPROACH; CYCLE FATIGUE; STRENGTH; FRACTURE; FAILURE; DISCS;

D O I：

10.1016/j.ijfatigue.2023.107805

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Notch and size effects show significant impact on the fatigue performance of engineering components, which deserves special attention. In this work, strain energy reformulated critical distance theory was developed for fatigue life prediction of notched components under size effect. Experimental data of different notched specimens manufactured from GH4169, TC4, TC11 alloys and low carbon steel En3B were used for model validation and comparison. Results indicate the proposed model works better than the Yang's and the Shen's models.

引用

页数：10

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