Controlled Unusual Stiffness of Mechanical Metamaterials.

ABSTRACT: Mechanical metamaterials that are engineered with sub-unit structures present unusual mechanical properties depending on the loading direction. Although they show promise, their practical utility has so far been somewhat limited because, to the best of our knowledge, no study about the potential of mechanical metamaterials made from sophisticatedly tailored sub-unit structures has been made. Here, we present a mechanical metamaterial whose mechanical properties can be systematically designed without changing its chemical composition or weight. We study the mechanical properties of triply periodic bicontinuous structures whose detailed sub-unit structure can be precisely fabricated using various sub-micron fabrication methods. Simulation results show that the effective wave velocity of the

SUBMITTER: Lee W 

PROVIDER: S-EPMC4738250 | biostudies-literature | 2016 Feb

REPOSITORIES: biostudies-literature