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Published in:
2015 | OriginalPaper | Chapter
5. Contact and Indentation Mechanics of Auxetic Materials
Author : Teik-Cheng Lim
Published in: Auxetic Materials and Structures
Publisher: Springer Singapore
Abstract
Contact mechanics and its accompanying description of stress and displacement fields is of great practical importance. This chapter begins by identifying the uniqueness of line and point contacts on auxetic half-space in comparison to conventional ones in terms of displacement and stress fields. This is then followed by a study on the influence of indenter shape on auxetic materials. In the contact between two isotropic elastic spheres, the tangential-to-normal compliance ratio is least when both spheres possess Poisson’s ratio of −1. A summary of works on contact of auxetic composites and indentation of auxetic foams are then furnished.
