Auxetic interval determination and experimental validation for a three-dimensional periodic framework.

Autor: Borcea, Ciprian S., Broeren, Freek G. J., Herder, Just L., Streinu, Ileana, van der Wijk, Volkert
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Zdroj: Mathematics & Mechanics of Solids; May2022, Vol. 27 Issue 5, p764-774, 11p
Abstrakt: Auxetic behavior refers to lateral widening upon stretching or, in reverse, lateral shrinking upon compression. When an initially auxetic structure is actuated by compression or extension, it will not necessarily remain auxetic for larger deformations. In this paper, we investigate the auxetic range in the deformation of a periodic framework with one degree of freedom. We use geometric criteria to identify the interval where the deformation is auxetic and validate these theoretical findings with compression experiments on sample structures with 10 × 10 × 10 unit cells. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index