Dimpled elastic sheets: a new class of non-porous negative Poisson’s ratio materials

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Dimpled elastic sheets: a new class of non-porous negative Poisson’s ratio materials

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Title: Dimpled elastic sheets: a new class of non-porous negative Poisson’s ratio materials
Author: Javid, Farhad; Smith-Roberge, Evelyne; Innes, Matthew C.; Shanian, Ali; Weaver, James C.; Bertoldi, Katia

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Citation: Javid, Farhad, Evelyne Smith-Roberge, Matthew C. Innes, Ali Shanian, James C. Weaver, and Katia Bertoldi. 2015. “Dimpled elastic sheets: a new class of non-porous negative Poisson’s ratio materials.” Scientific Reports 5 (1): 18373. doi:10.1038/srep18373. http://dx.doi.org/10.1038/srep18373.
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Abstract: In this study, we report a novel periodic material with negative Poisson’s ratio (also called auxetic materials) fabricated by denting spherical dimples in an elastic flat sheet. While previously reported auxetic materials are either porous or comprise at least two phases, the material proposed here is non-porous and made of a homogeneous elastic sheet. Importantly, the auxetic behavior is induced by a novel mechanism which exploits the out-of-plane deformation of the spherical dimples. Through a combination of experiments and numerical analyses, we demonstrate the robustness of the proposed concept, paving the way for developing a new class of auxetic materials that significantly expand their design space and possible applications.
Published Version: doi:10.1038/srep18373
Other Sources: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4680965/pdf/
Terms of Use: This article is made available under the terms and conditions applicable to Other Posted Material, as set forth at http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA
Citable link to this page: http://nrs.harvard.edu/urn-3:HUL.InstRepos:23993626
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