12 research outputs found
Auxetic regions in large deformations of periodic frameworks
In materials science, auxetic behavior refers to lateral widening upon
stretching. We investigate the problem of finding domains of auxeticity in
global deformation spaces of periodic frameworks. Case studies include planar
periodic mechanisms constructed from quadrilaterals with diagonals as periods
and other frameworks with two vertex orbits. We relate several geometric and
kinematic descriptions.Comment: Presented at the International Conference on "Interdisciplinary
Applications of Kinematics" (IAK18), Lima, Peru, March 201