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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.
Source PublicationSOFT MATTER
2016
Volume12Issue:5Pages:1586-1592
ISSN1744-683X
AbstractYoung'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
DOI10.1039/c5sm02643a
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Indexed BySCI ; EI
Language英语
WOS IDWOS:000369749500026
WOS KeywordITER ; VESSEL ; FUSION ; MODEL
WOS Research AreaChemistry ; Materials Science ; Physics ; Polymer Science
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary ; Physics, Multidisciplinary ; Polymer Science
Funding OrganizationThe 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.
DepartmentLNM纳/微系统力学与物理力学
Classification一类
RankingFalse
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Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/58676
Collection非线性力学国家重点实验室
Corresponding AuthorYang, FQ (reprint author), Univ Kentucky, Dept Chem & Mat Engn, Mat Program, Lexington, KY 40506 USA.
Recommended Citation
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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