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Strategic Study of CAE >> 2007, Volume 9, Issue 4

Size-dependent Elastic Instability of Gel CylinderWith Surface Stress

China Institute of Atomic Energy, P.O.BOX 275(34) Beijing 102413, China

Received: 2006-02-28 Revised: 2006-04-29

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Abstract

The elastic instability of a gel cylinder was researched with classical elastic theory. The non-classic boundary condition of the elastic instability has been educed by the energy functional variation analysis.  So a criterion equation of the elastic instability can be got. Through the analysis of the equation, it is found that the elastic instability is relevant to the radius, intrinsic scale and instable wavelength of the cylinder.

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