Comparison of the nonlinear elastic behavior of auxetic lattice architectures (Poster)
van den Boom, S.J.
Mechanical metamaterials are man-made materials which derive their unusual properties from the geometry of their microstructure rather than their constituents. Auxetic metamaterials (materials with a negative Poisson’s ratio) exhibit mechanical properties in the (quasi) static regime that are potentially promising for impact protection, given these properties are preserved in the highly dynamic regime. In this regime it is an open question to which extent the mechanical properties are retained and can possibly be maintained by adjustments in the microstructure, since the highly dynamic impact regime is typically accompanied by rate and inertia effects with geometrical nonlinearities as well as large plastic deformations and material nonlinearities.
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TU Delft ; TNO, Delft ; Den Haag
25th Engineering Mechanics Symposium, Arnhem, Netherlands, 25-26 October 2022