2018 International Conference on Reconfigurable Mechanisms and Robots, ReMAR 2018 - Proceedings
Auxetic behavior refers to lateral widening upon stretching. Although a structural origin for this rather counterintuitive type of deformation was often suggested, a theoretical understanding of the role of geometry in auxetic behavior has been a challenge for a long time. However, for structures modeled as periodic bar-and-joint frameworks, including atom-and-bond frameworks in crystalline materials, there is a complete geometric solution which opens endless possibilities for new auxetic designs. We construct a large family of three-dimensional auxetic periodic mechanisms and discuss the ideas involved in their design.
© The Author(s) 2018
Borcea, Ciprian S. and Streinu, Ileana, "Auxetics Abounding" (2018). Computer Science: Faculty Publications, Smith College, Northampton, MA.