Now showing items 1-6 of 6

    • Elastic metamaterials for tuning circular polarization of electromagnetic waves 

      Zárate, Yair; Babaee, Sahab; Kang, Sung H.; Neshev, Dragomir N.; Shadrivov, Ilya V.; Bertoldi, Katia; Powell, David A. (Nature Publishing Group, 2016)
      Electromagnetic resonators are integrated with advanced elastic material to develop a new type of tunable metamaterial. An electromagnetic-elastic metamaterial able to switch on and off its electromagnetic chiral response ...
    • Hierarchical honeycomb auxetic metamaterials 

      Mousanezhad, Davood; Babaee, Sahab; Ebrahimi, Hamid; Ghosh, Ranajay; Hamouda, Abdelmagid Salem; Bertoldi, Katia; Vaziri, Ashkan (Nature Publishing Group, 2015)
      Most conventional materials expand in transverse directions when they are compressed uniaxially resulting in the familiar positive Poisson’s ratio. Here we develop a new class of two dimensional (2D) metamaterials with ...
    • Honeycomb phononic crystals with self-similar hierarchy 

      Mousanezhad, Davood; Babaee, Sahab; Ghosh, Ranajay; Mahdi, Elsadig; Bertoldi, Katia; Vaziri, Ashkan (American Physical Society (APS), 2015)
      We highlight the effect of structural hierarchy and deformation on band structure and wave-propagation behavior of two-dimensional phononic crystals. Our results show that the topological hierarchical architecture and ...
    • Non-Linear Mechanics of Three-Dimensional Architected Materials; Design of Soft and Functional Systems and Structures 

      Babaee, Sahab (2016-09-07)
      In the search for materials with new properties, there have been significant advances in recent years aimed at the construction of architected materials whose behavior is governed by structure, rather than composition. ...
    • Reconfigurable origami-inspired acoustic waveguides 

      Babaee, Sahab; Overvelde, Johannes Tesse bastiaan; Chen, Elizabeth R.; Tournat, V.; Bertoldi, Katia (American Association for the Advancement of Science (AAAS), 2016)
      We combine numerical simulations and experiments to design a new class of reconfigurable waveguides based on three-dimensional origami-inspired metamaterials. Our strategy builds on the fact that the rigid plates and hinges ...
    • Wave propagation in cross-linked random fiber networks 

      Babaee, Sahab; Shahsavari, A. S.; Wang, Pai; Picu, R. C.; Bertoldi, Katia (AIP Publishing, 2015)
      We numerically investigate the propagation of small-amplitude elastic waves in random fiber networks. Our analysis reveals that the dynamic response of the system is not only controlled by its overall elasticity, but also ...