Probabilistic framework for fatigue life assessment of notched components under size effects

doi:10.1016/j.ijmecsci.2020.105685

IMECH-IR > 非线性力学国家重点实验室

	Probabilistic framework for fatigue life assessment of notched components under size effects
	Liao D 1; Zhu SP(朱顺鹏)1,2,3; Keshtegar B 1,4; Qian GA(钱桂安)2 ; Wang QY 3,5
发表期刊	INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
	2020-09-01
卷号	181 页码:12
ISSN	0020-7403
摘要	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.
关键词	Notch Fatigue Size effect Failure probability Life prediction Weibull model
DOI	10.1016/j.ijmecsci.2020.105685
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000552795300007
关键词[WOS]	FIELD INTENSITY APPROACH ; MULTIAXIAL FATIGUE ; CRITICAL DISTANCE ; LCF LIFE ; CYCLE FATIGUE ; CAST-IRON ; STRESS ; STRENGTH ; PREDICTION ; MODEL
WOS研究方向	Engineering ; Mechanics
WOS类目	Engineering, Mechanical ; Mechanics
项目资助者	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
论文分区	一类
力学所作者排名	1
RpAuthor	Zhu, Shun-Peng ; Wang, Qingyuan
引用统计	被引频次：222[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://dspace.imech.ac.cn/handle/311007/84732
专题	非线性力学国家重点实验室
作者单位	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
推荐引用方式 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.
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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