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); Hong, YS (reprint author), Chinese Acad Sci, State Key Lab Nonlinear Mech, Inst Mech, Beijing 100190, Peoples R China.
发表期刊	INTERNATIONAL JOURNAL OF FATIGUE
	2013-03
卷号	48 页码:19-27
ISSN	0142-1123
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.
关键词	Very-high-cycle Fatigue Inclusion Size Stress Ratio Fatigue Strength High-strength Steels
学科领域	疲劳与断裂力学
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000315617500004
项目资助者	National Natural Science Foundations of China [11172304, 11021262, 11202210]; National Basic Research Program of China [2012CB937500]
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
引用统计	被引频次：64[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/311007/47141
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, State Key Lab Nonlinear Mech, Inst Mech, Beijing 100190, Peoples R China.
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,&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.

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