Compliance of a microfibril subjected to shear and normal loads. |
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| Authors: | Jingzhou Liu Chung-Yuen Hui Lulin Shen Anand Jagota |
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| Affiliation: | Department of Theoretical and Applied Mechanics, Cornell University, Ithaca, NY 14853, USA. |
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| Abstract: | Many synthetic bio-inspired adhesives consist of an array of microfibrils attached to an elastic backing layer, resulting in a tough and compliant structure. The surface region is usually subjected to large and nonlinear deformations during contact with an indenter, leading to a strongly nonlinear response. In order to understand the compliance of the fibrillar regions, we examine the nonlinear deformation of a single fibril subjected to a combination of shear and normal loads. An exact closed-form solution is obtained using elliptic functions. The prediction of our model compares well with the results of an indentation experiment. |
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| Keywords: | compliance elastica theory fibrils |
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