| Probabilistic framework for fatigue life assessment of notched components under size effects | |
Liao D1; Zhu SP(朱顺鹏)1,2,3; Keshtegar B1,4; Qian GA(钱桂安)2 ; Wang QY3,5
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| Source Publication | INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
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| 2020-09-01 | |
| Volume | 181Pages:12 |
| ISSN | 0020-7403 |
| Abstract | Structural integrity assessments with discontinuities are critical for ensuring operational life and reliability of engineering components. In this work, through combining with the generalized local model, a probabilistic framework is proposed for fatigue life assessment of notched components under size effects, in which the Smith-Watson-Topper damage parameter is utilized to characterize the multiaxial stress state at the notch tip. In particular, an effective stress concept is introduced to characterize the inhomogeneous stress distribution within the notch region. Finally, experimental data of TA19 notched specimens with different scales are utilized for model validation and comparison, results show that the proposed framework yields acceptable correlations of predicted fatigue lives with experimental ones. |
| Keyword | Notch Fatigue Size effect Failure probability Life prediction Weibull model |
| DOI | 10.1016/j.ijmecsci.2020.105685 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000552795300007 |
| WOS Keyword | FIELD INTENSITY APPROACH ; MULTIAXIAL FATIGUE ; CRITICAL DISTANCE ; LCF LIFE ; CYCLE FATIGUE ; CAST-IRON ; STRESS ; STRENGTH ; PREDICTION ; MODEL |
| WOS Research Area | Engineering ; Mechanics |
| WOS Subject | Engineering, Mechanical ; Mechanics |
| Funding Organization | National Natural Science Foundation of China[11972110] ; National Natural Science Foundation of China[11672070] ; Sichuan Provincial Key Research and Development Program[2019YFG0348] ; Science and Technology Program of Guangzhou, China[201904010463] ; Fundamental Research Funds for the Central Universities[ZYGX2019J040] ; Key Laboratory of Deep Earth Science and Engineering (Sichuan University), Ministry of Education[DESE201901] ; State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences |
| Classification | 一类 |
| Ranking | 1 |
| Contributor | Zhu, Shun-Peng ; Wang, Qingyuan |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/84732 |
| Collection | 非线性力学国家重点实验室 |
| Affiliation | 1.Univ Elect Sci & Technol China, Sch Mech & Elect Engn, Chengdu 611731, Peoples R China; 2.Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech LNM, Beijing 100190, Peoples R China; 3.Sichuan Univ, Key Lab Deep Earth Sci & Engn, Minist Educ, Chengdu 610065, Peoples R China; 4.Univ Zabol, Dept Civil Engn, Zabol, Iran; 5.Chengdu Univ, Sch Mech Engn, Chengdu 610006, Peoples R China |
| Recommended Citation GB/T 7714 | Liao D,Zhu SP,Keshtegar B,et al. Probabilistic framework for fatigue life assessment of notched components under size effects[J]. INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES,2020,181:12.Rp_Au:Zhu, Shun-Peng, Wang, Qingyuan |
| APA | Liao D,朱顺鹏,Keshtegar B,钱桂安,&Wang QY.(2020).Probabilistic framework for fatigue life assessment of notched components under size effects.INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES,181,12. |
| MLA | Liao D,et al."Probabilistic framework for fatigue life assessment of notched components under size effects".INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES 181(2020):12. |
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| File Name/Size | DocType | Version | Access | License | ||
| Jp2020176.pdf（2833KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Download | |
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