Martin van Hecke
"Complex Mechanical Metamaterials"
Abstract: The structural complexity of metamaterials is limitless, but in practice, most attention has focussed on periodic architectures, leading to relatively simple features. Here we discuss structurally complex metamaterials, which exhibit spatially textured and 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.
Bio: Martin van Hecke got his PhD in theoretical physics in 1996 at the University of Leiden. Since then he has worked on a broad range of topic in soft matter, including nonlinear dynamics, granular media, rheology, jamming and metamaterials, combining experiments, simulations and theory. The common thread in all this works is the fascination for the emergence of complex behavior in seemingly simple systems. In 2008 he was appointed as professor in the ‘organization of disordered media’ in Leiden and in 2014 he became head of the newly established 'Designer Matter' department at AMOLF, Amsterdam. His main current fascination is to embed complex functionalities in architected materials.