The effect of a capillary bridge on the crack opening of a penny crack

doi:10.1039/c5sm02643a

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	The effect of a capillary bridge on the crack opening of a penny crack
	Yang FQ; Zhao YP(赵亚溥); Yang, FQ (reprint author), Univ Kentucky, Dept Chem & Mat Engn, Mat Program, Lexington, KY 40506 USA.
发表期刊	SOFT MATTER
	2016
卷号	12 期号:5 页码:1586-1592
ISSN	1744-683X
摘要	Young's relation is based on the equilibrium of horizontal components of surface tensions for a liquid droplet on a "rigid'' substrate without addressing the substrate deformation induced by the net vertical component of surface tensions. Upon realizing the importance of wetting in controlling the integrity of flexible structures and electronics, the effect of a capillary bridge or a liquid droplet on the crack opening of a penny crack under the action of a far-field tensile stress is analyzed. Closed-form solutions are derived for both the crack opening and the stress intensity factor, which are functions of the size of the capillary bridge or the droplet, surface tension, and the contact angle. Both the capillary bridge and the droplet can introduce the crack closure. The minimum far-field tensile stresses needed for complete crack opening, i.e. no crack closure, are obtained analytically. The net vertical component of the surface tensions introduces the formation of a surface ridge on the crack face at the edge of the droplet for an open crack. The amplitude of the surface ridge increases with the increase of the net vertical component of the surface tensions and the decrease of the breadth
DOI	10.1039/c5sm02643a
URL	查看原文
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000369749500026
关键词[WOS]	ITER ; VESSEL ; FUSION ; MODEL
WOS研究方向	Chemistry ; Materials Science ; Physics ; Polymer Science
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Physics, Multidisciplinary ; Polymer Science
项目资助者	The authors are grateful for the support of the "Opening fund of State Key Laboratory of Nonlinear Mechanics (LNM)''. YZ is grateful for the supports of the National Natural Science Foundation of China (Grant No. U1562105 and 11372313) and CAS Interdisciplinary Innovation Team Project.
课题组名称	LNM纳/微系统力学与物理力学
论文分区	一类
力学所作者排名	False
引用统计	被引频次：13[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/311007/58676
专题	非线性力学国家重点实验室
通讯作者	Yang, FQ (reprint author), Univ Kentucky, Dept Chem & Mat Engn, Mat Program, Lexington, KY 40506 USA.
推荐引用方式 GB/T 7714	Yang FQ,Zhao YP,Yang, FQ . The effect of a capillary bridge on the crack opening of a penny crack[J]. SOFT MATTER,2016,12,5,:1586-1592.
APA	Yang FQ,赵亚溥,&Yang, FQ .(2016).The effect of a capillary bridge on the crack opening of a penny crack.SOFT MATTER,12(5),1586-1592.
MLA	Yang FQ,et al."The effect of a capillary bridge on the crack opening of a penny crack".SOFT MATTER 12.5(2016):1586-1592.

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