Stretchable and compressible thin films of stiff materials on compliant wavy substrates
Stretchable and compressible thin films of stiff materials on compliant wavy substrates
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DOI：
10.1063/1.2955829
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发表时间：
2008-07-07
影响因子：
4
通讯作者：
Rogers, J. A.
中科院分区：
文献类型：
--
作者：
Xiao, J.;Carlson, A.;Rogers, J. A.
这封信介绍了聚（二甲基硅氧烷）弹性体基材上金薄膜的实验、数值和分析研究，该基材设计有正弦、“波浪”表面起伏特征。这种系统可用作电子或传感设备中的可拉伸导体。最大薄膜应变是根据薄膜和基底弹性模量、薄膜厚度、波状轮廓的振幅和波长以及施加的应变来获得的。这些解析解与有限元分析和小单轴应变下实验测量的正弦曲线变化非常吻合。建立了系统拉伸性和压缩性的简单表达式。 (C) 2008 年美国物理研究所。
This letter presents experimental, numerical, and analytical studies of Au thin films on elastomeric substrates of poly (dimethylsiloxane) that are designed with sinusoidal, "wavy" features of surface relief. Such systems can be useful as stretchable conductors in electronic or sensory devices. The maximum film strain is obtained in terms of film and substrate elastic moduli, film thickness, amplitude and wavelength of the wavy profile, and the applied strain. These analytical solutions agree well with both finite element analysis and experimentally measured changes in the sinusoidal profile under small, uniaxial strains. A simple expression for the system stretchability and compressibility is established. (C) 2008 American Institute of Physics.