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Dominant factors for very-high-cycle fatigue of high-strength steels and a new design method for components
Matsunaga H; Sun C; Hong YS(洪友士); Murakami Y; Hong, YS (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. Matsunaga, H (reprint author), Kyushu Univ, Dept Mech Engn, Fukuoka 812, Japan.
Source PublicationFATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
2015-11
Volume38Issue:11Pages:1274-1284
ISSN8756-758X
AbstractDominant factors affecting fatigue failure from non-metallic inclusions in the very-high-cycle fatigue (VHCF) regime are reviewed, and the mechanism for the disappearance of the conventional fatigue limit is discussed. Specifically, this paper focuses on the following: (i) the crucial role of internal hydrogen trapped by non-metallic inclusions for the growth of the optically dark area (around the non-metallic inclusion at fracture origin), (ii) the behaviour of the crack growth from a non-metallic inclusion as a small crack and (iii) the statistical aspects of the VHCF strength, in consideration of the maximum inclusion size, using statistics of extremes. In addition, on the basis of the aforementioned findings, a new fatigue design method is proposed for the VHCF regime. The design method gives the allowable stress, sigma(allowable), for a determined design life, N-fD, as the lower bound of scatter of fatigue strength, which depends on the amount of components produced.
KeywordBearing Steel Non-metallic Inclusion Small Crack The Root Area Parameter Model Very-high-cycle Fatigue
DOI10.1111/ffe.12331
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000362693300003
WOS KeywordREGIME N-GREATER-THAN-10(7) CYCLES ; LIFE REGIME ; INCLUSION SIZE ; FAILURE ; MECHANISM ; PREDICTION ; HYDROGEN ; BEHAVIOR ; CRACKS
WOS Research AreaEngineering ; Materials Science
WOS SubjectEngineering, Mechanical ; Materials Science, Multidisciplinary
DepartmentLNM金属材料微结构与力学性能
Classification二类/Q1
RankingTrue
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/58400
Collection非线性力学国家重点实验室
Corresponding AuthorHong, YS (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. Matsunaga, H (reprint author), Kyushu Univ, Dept Mech Engn, Fukuoka 812, Japan.
Recommended Citation
GB/T 7714
Matsunaga H,Sun C,Hong YS,et al. Dominant factors for very-high-cycle fatigue of high-strength steels and a new design method for components[J]. FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES,2015,38(11):1274-1284.
APA Matsunaga H,Sun C,Hong YS,Murakami Y,&Hong, YS .(2015).Dominant factors for very-high-cycle fatigue of high-strength steels and a new design method for components.FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES,38(11),1274-1284.
MLA Matsunaga H,et al."Dominant factors for very-high-cycle fatigue of high-strength steels and a new design method for components".FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES 38.11(2015):1274-1284.
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