Metamaterial Design

The goal of this work is to design a new class of soft reconfigurable porous structures. By changing the pore shape of these structures we can not only tune the non-linear stiffness and Poisson’s ratio, but also the type of instability that occurs, i.e. microscopic or macroscopic instability. Both numerical and experimental work has been done to characterize these porous structures under uniaxial loading.

Publications:

Coulais, C., Overvelde, J. T. B., Lubbers, L. A., Bertoldi, K., van Hecke, M., (2015). Discontinuous Buckling of Wide Beams and Metabeams. Physical Review Letters, 115, 044301. [pdf]

Overvelde, J. T. B., Bertoldi, K., (2014). Relating Pore Shape to the Non-linear Response of Periodic Elastomeric Structures. Journal of the Mechanics and Physics of Solids, 64, 351-366. [pdf]

Overvelde, J. T. B., Shan, S., Bertoldi, K., (2012). Compaction Through Buckling in 2D Periodic, Soft and Porous Structures: Effect of Pore Shape. Advanced Materials, 24(17)2337-2342[pdf]