“Phase transforming cellular materials (PXCMs) are a class of materials whose unit cells exhibit multiple configurations (metastable or bistable) . The geometrical structure of the PXCM can change to increase the energy absorbed. The hysteretic nature of the PXCM makes the potential application of these cellular materials extremely versatile”. The objective was to be able to research within the 3D realm for the purpose of constructing a 3D PXCM.
A well known PXCM has a sinusoidal beam mechanism. During the summer the research group decided to test different geometries, in this case, shells were created with tennis balls.
NCN Summer Undergraduate Research Experience 2018
National Science Foundation
 D. Restrepo, N. D. Mankame, and P. D. Zavattieri. “Phase transforming cellular materials”. Extrem. Mech. Lett., vol. 4, pp. 52–60, 2015.
 M. Taffetani, X. Jiang, D.P. Holmes, D. Vella. “Static bistability of spherical caps”. Proc. R. Soc. A., vol. 474, 2018.
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