Gravity and surface tension effects on the shape change of soft materials
Surface tension and gravity, whose influence on the deformation of conventional engineering materials is negligible, become important for soft materials that are typically used in the microfabrication of devices such as microfluidic channels. Although for soft materials the shape change due to these...
| Publié dans: | Langmuir : the ACS journal of surfaces and colloids. - 1985. - 29(2013), 27 vom: 09. Juli, Seite 8665-74 |
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| Auteur principal: | |
| Autres auteurs: | , , , , |
| Format: | Article en ligne |
| Langue: | English |
| Publié: |
2013
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| Accès à la collection: | Langmuir : the ACS journal of surfaces and colloids |
| Sujets: | Journal Article Research Support, U.S. Gov't, Non-P.H.S. Elastomers Hydrogels |
| Résumé: | Surface tension and gravity, whose influence on the deformation of conventional engineering materials is negligible, become important for soft materials that are typically used in the microfabrication of devices such as microfluidic channels. Although for soft materials the shape change due to these forces can be large, it is often neglected in the design processes. To capture conditions under which the influence of these forces is important, we propose a deformation map in which the shape change is captured by two dimensionless material parameters. Our idea is demonstrated by simulating the large deformation of a short circular cylinder made of a neo-Hookean material in frictionless contact with a rigid substrate. These simulations are carried out using a finite element model that accounts for surface tension and gravity. Our model integrates the two different approaches typically used to determine the shape change of solids and liquid drops in contact with a substrate |
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| Description: | Date Completed 07.02.2014 Date Revised 09.07.2013 published: Print-Electronic Citation Status MEDLINE |
| ISSN: | 1520-5827 |
| DOI: | 10.1021/la400921h |