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)
刊名	Mechanics of Materials
	2014-02
通讯作者邮箱	hongys@imech.ac.cn
卷号	69 期号:1 页码:227-236
关键词	Surface hardness Sulfate attack Concrete Damage evolution
ISSN号	0167-6636
通讯作者	Hong, YS (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China.
产权排序	[Sun, Chengqi; Lei, Zhengqiang; Hong, Youshi] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China
合作状况	国内
中文摘要	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.
学科主题	Materials Science; Mechanics
分类号	一类
收录类别	SCI ; EI
资助信息	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).
原文出处	http://dx.doi.org/10.1016/j.mechmat.2013.10.007
语种	英语
WOS记录号	WOS:000331352000018
公开日期	2014-05-09
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/48774]
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,Hong YS. 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.(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.