THEORETICAL ANALYSIS OF THE SPONTANEOUS SURFACE INSTABILITY FOR THIN SOFT ELASTIC FILMS

摘要：

The spontaneous surface instability induced by the van der Waals force in a softelastic thin film perfectly bonded to a rigid substrate is investigated theoreticallyusing the bifurcation theory of elastic continua.The analytical solution of thecritical condition is obtained.Detailed examinations on the effect of surface tension,thickness and elastic properties of the film show that the characteristic wavelengthof the deformation bifurcation mode depends on the film thickness via anexponential relation,with the power index in the range from 0.75 to 1.0.

关键词： Thin film Spontaneous instability Surface energy van der Waals force

作者: X.Q.Feng S.Q.Huang

作者单位: FML,Department of Engineering Mechanics,Tsinghua University,Beijing 100084,China

会议类型: 国际会议

会议名称: 第二届国际非均质材料力学会议(The Second International Conference on Heterogeneous Material Mechanics)

会议地点: 安徽黄山

会议语种:英文

页码: 491-495

在线出版日期: 2008-06-03（万方平台首次上网日期，不代表论文的发表时间）