منابع مشابه
Soft lubrication.
We consider some basic principles of fluid-induced lubrication at soft interfaces. In particular, we quantify how a soft substrate changes the geometry of and the forces between surfaces sliding past each other. By considering the model problem of a symmetric nonconforming contact moving tangentially to a thin elastic layer, we determine the normal force in the small and large deflection limit,...
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Lubrication flows appear in many applications in engineering, biophysics, and in nature. Separation of surfaces and minimisation of friction and wear is achieved when the lubrication fluid builds up a lift force. In this paper we analyse soft lubricated contacts by treating the solid walls as viscoelastic: soft materials are typically not purely elastic, but dissipate energy under dynamical loa...
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Baudouin Saintyves, Théo Jules, 2 Thomas Salez, 3 and L. Mahadevan ∗ Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA Département de Physique, ENS, PSL Research University, 75005 Paris, France PCT Lab, UMR CNRS 7083 Gulliver, ESPCI Paris, PSL Research University, 75005 Paris, France Paulson School of Engineering and Applied Sciences, Department of...
متن کاملSoft lubrication: The elastohydrodynamics of nonconforming and conforming contacts
We study the lubrication of fluid-immersed soft interfaces and show that elastic deformation couples tangential and normal forces and thus generates lift. We consider materials that deform easily, due to either geometry e.g., a shell or constitutive properties e.g., a gel or a rubber , so that the effects of pressure and temperature on the fluid properties may be neglected. Four different syste...
متن کاملAnticancer lubrication
Mice lacking Muc2 had an increased ratio of proliferating to apoptotic epithelial cells, resulting in altered maturation and increased migration of epithelial cells in the intestine. They were also more likely to develop intestinal, colon, and rectal tumors. The mice are the first good model for studying rectal tumors, which are common in humans. Anticancer lubrication new mouse model for the s...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 2004
ISSN: 0031-9007,1079-7114
DOI: 10.1103/physrevlett.92.245509