Dominant factors for very-high-cycle fatigue of high-strength steels and a new design method for components

doi:10.1111/ffe.12331

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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.
发表期刊	FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
	2015-11
卷号	38 期号:11 页码:1274-1284
ISSN	8756-758X
摘要	Dominant 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.
关键词	Bearing Steel Non-metallic Inclusion Small Crack The Root Area Parameter Model Very-high-cycle Fatigue
DOI	10.1111/ffe.12331
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000362693300003
关键词[WOS]	REGIME N-GREATER-THAN-10(7) CYCLES ; LIFE REGIME ; INCLUSION SIZE ; FAILURE ; MECHANISM ; PREDICTION ; HYDROGEN ; BEHAVIOR ; CRACKS
WOS研究方向	Engineering ; Materials Science
WOS类目	Engineering, Mechanical ; Materials Science, Multidisciplinary
课题组名称	LNM金属材料微结构与力学性能
论文分区	二类/Q1
力学所作者排名	True
引用统计	被引频次：36[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/311007/58400
专题	非线性力学国家重点实验室
通讯作者	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.
推荐引用方式 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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