Friday, March 1, 2019 at 1:00pm to 2:00pm
Physical Sciences Building, 416
245 East Avenue
Martin Van Hecke, Huygens-Kamerlingh Onnes Laboratory, Universiteit Leiden
Host: Itai Cohen
Mechanical Metamaterials as Machines
The structural complexity of metamaterials is limitless, but in practice, most attention has focussed on periodic architectures, leading to relatively simple properties and functionalities. Here we discuss structurally complex metamaterials, which exhibit spatially textured and sequential behavior. First, we introduce a combinatorial approach that allows to design aperiodic, yet frustration-free, mechanical metamaterials, and discuss the physics of a textured 3D metamaterial, as well as a multi-shape origami-based metamaterial. Second, we show how to design and create metamaterials that translate a global uniform compression into a precise multistep pathway of reconfigurations. There innovations open new avenues towards mechanical metamaterials with unusual order and machine-like functionalities.