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

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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
刊名	FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
	2015-11
通讯作者邮箱	matsunaga.hisao.964@m.kyushu-u.ac.jp ; hongys@imech.ac.cn
卷号	38 期号:11 页码:1274-1284
关键词	bearing steel non-metallic inclusion small crack the root area parameter model very-high-cycle fatigue
ISSN号	8756-758X
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.
产权排序	[Matsunaga, H.] Kyushu Univ, Dept Mech Engn, Fukuoka 812, Japan; [Matsunaga, H.] Kyushu Univ, Res Ctr Hydrogen Ind Use & Storage HYDROGENIUS, Fukuoka 812, Japan; [Matsunaga, H.] Kyushu Univ, Int Inst Carbon Neutral Energy Res I2CNER, Fukuoka 812, Japan; [Sun, C.; Hong, Y.] Chinese Acad Sci, Inst Mech, LNM, Beijing 100080, Peoples R China; [Murakami, Y.] Kyushu Univ, Fukuoka 812, Japan
中文摘要	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.
分类号	二类/Q1
类目[WOS]	Engineering, Mechanical ; Materials Science, Multidisciplinary
研究领域[WOS]	Engineering ; Materials Science
关键词[WOS]	REGIME N-GREATER-THAN-10(7) CYCLES ; LIFE REGIME ; INCLUSION SIZE ; FAILURE ; MECHANISM ; PREDICTION ; HYDROGEN ; BEHAVIOR ; CRACKS
收录类别	SCI ; EI
原文出处	http://dx.doi.org/10.1111/ffe.12331
语种	英语
WOS记录号	WOS:000362693300003
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/58400]
专题	力学研究所_非线性力学国家重点实验室
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.(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.