Straightening wrinkles

Destrade, M., Ogden, R.W. , Sgura, I. and Vergori, L. (2014) Straightening wrinkles. Journal of the Mechanics and Physics of Solids, 65, pp. 1-11. (doi: 10.1016/j.jmps.2014.01.001)

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We consider the elastic deformation of a circular cylindrical sector composed of an incompressible isotropic soft solid when it is straightened into a rectangular block. In this process, the circumferential line elements on the original inner face of the sector are stretched while those on the original outer face are contracted. We investigate the geometrical and physical conditions under which the latter line elements can be contracted to the point where a localized incremental instability develops. We provide a robust algorithm to solve the corresponding two-point boundary value problem, which is stiff numerically. We illustrate the results with full incremental displacement fields in the case of Mooney–Rivlin materials and also perform an asymptotic analysis for thin sectors.

Item Type:Articles
Glasgow Author(s) Enlighten ID:Ogden, Professor Raymond and Vergori, Dr Luigi
Authors: Destrade, M., Ogden, R.W., Sgura, I., and Vergori, L.
College/School:College of Science and Engineering > School of Mathematics and Statistics > Mathematics
Journal Name:Journal of the Mechanics and Physics of Solids
Publisher:Elsevier Ltd.
ISSN (Online):1873-4782

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