Effects of inclusion size and stress ratio on fatigue strength for high-strength steels with fish-eye mode failure

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	Effects of inclusion size and stress ratio on fatigue strength for high-strength steels with fish-eye mode failure
	Sun CQ(孙成奇); Lei ZQ(雷铮强); Xie JJ(谢季佳); Hong YS(洪友士)
刊名	INTERNATIONAL JOURNAL OF FATIGUE
	2013-03
通讯作者邮箱	hongys@imech.ac.cn
卷号	48 页码:19-27
关键词	Very-high-cycle fatigue Inclusion size Stress ratio Fatigue strength High-strength steels
ISSN号	0142-1123
通讯作者	Hong, YS (reprint author), Chinese Acad Sci, State Key Lab Nonlinear Mech, Inst Mech, Beijing 100190, Peoples R China.
产权排序	[Sun, Chengqi; Lei, Zhengqiang; Xie, Jijia; Hong, Youshi] Chinese Acad Sci, State Key Lab Nonlinear Mech, Inst Mech, Beijing 100190, Peoples R China
中文摘要	Experimental results indicate that the fatigue life reduces by about two orders of magnitude when inclusion size doubles. Then, a model is proposed for predicting the fatigue strength of high-strength steels with fish-eye mode failure based on the experimental results for the effect of inclusion size and stress ratio. In the model, the effect of inclusion size a₀ and stress ratio R on fatigue strength σ_a is expressed as σ_a proportional to σ_a ∝ a₀^m[(1 − R)/2]^α, where m and a are material parameters. The predicted results are in good agreement with our experimental results and the ones reported in literature.
学科主题	疲劳与断裂力学
分类号	二类/Q1
收录类别	SCI ; EI
资助信息	National Natural Science Foundations of China [11172304, 11021262, 11202210]; National Basic Research Program of China [2012CB937500]
原文出处	http://dx.doi.org/10.1016/j.ijfatigue.2012.12.004
语种	英语
WOS记录号	WOS:000315617500004
公开日期	2013-04-07
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/47141]
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	Sun CQ,Lei ZQ,Xie JJ,et al. Effects of inclusion size and stress ratio on fatigue strength for high-strength steels with fish-eye mode failure[J]. INTERNATIONAL JOURNAL OF FATIGUE,2013,48:19-27.
APA	Sun CQ,Lei ZQ,Xie JJ,&Hong YS.(2013).Effects of inclusion size and stress ratio on fatigue strength for high-strength steels with fish-eye mode failure.INTERNATIONAL JOURNAL OF FATIGUE,48,19-27.
MLA	Sun CQ,et al."Effects of inclusion size and stress ratio on fatigue strength for high-strength steels with fish-eye mode failure".INTERNATIONAL JOURNAL OF FATIGUE 48(2013):19-27.