Effects of stress ratio on crack growth rate and fatigue strength for high cycle and very-high-cycle fatigue of metallic materials

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	Effects of stress ratio on crack growth rate and fatigue strength for high cycle and very-high-cycle fatigue of metallic materials
	Sun CQ(孙成奇); Lei ZQ(雷铮强); Hong YS(洪友士); Hong, YS (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.
发表期刊	Mechanics of Materials
	2014-02
卷号	69 期号:1 页码:227-236
ISSN	0167-6636
摘要	This paper studies the effects of stress ratio R on crack growth rate and fatigue strength for high cycle and very-high-cycle fatigue of metallic materials. First, the effect of R on fatigue crack growth rate is analyzed, and the result shows that the effect of R on crack growth rate at near-threshold region and on Paris region is well expressed by a unified relation. Then, a model is developed for describing the fatigue crack growth rate with the effect of R in near-threshold region and Paris region. The model is verified by experimental data of metallic materials in literature. Finally, a formula is derived for the effect of R on fatigue strength. The estimated results are in good agreement with the experimental data for high cycle and very-high-cycle fatigue regime in literature. The comparison of the present result with Goodman diagram is also discussed. (C) 2013 Elsevier Ltd. All rights reserved.
关键词	Surface Hardness Sulfate Attack Concrete Damage Evolution
学科领域	Materials Science ; Mechanics
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000331352000018
项目资助者	The project was supported by the National Natural Science Foundation of China (11202210, 11172304 and 11021262) and by the 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	一类
引用统计	被引频次：28[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/311007/48774
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.
推荐引用方式 GB/T 7714	Sun CQ,Lei ZQ,Hong YS,et al. Effects of stress ratio on crack growth rate and fatigue strength for high cycle and very-high-cycle fatigue of metallic materials[J]. Mechanics of Materials,2014,69,1,:227-236.
APA	Sun CQ,Lei ZQ,Hong YS,&Hong, YS .(2014).Effects of stress ratio on crack growth rate and fatigue strength for high cycle and very-high-cycle fatigue of metallic materials.Mechanics of Materials,69(1),227-236.
MLA	Sun CQ,et al."Effects of stress ratio on crack growth rate and fatigue strength for high cycle and very-high-cycle fatigue of metallic materials".Mechanics of Materials 69.1(2014):227-236.

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