Topological mechanical metamaterials

Sebastian Huber (D-PHYS)

The elastic properties of materials are determined by a few material constants such as the Young’s modulus. Using super-​structures one can effectively change these “constants”. In this way we obtain functionalities such as wave-​guiding, acoustic lensing or programmable failure. I will show how topological band theory, known from the description of electrons in solids, provides us with a powerful design-​principle for such mechanical metamaterials.

Overview Materials Colloquium 2019