Computational modeling of metamaterials for impact protection (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/composition. Auxetic metamaterials (so-called negative Poisson’s ratio materials) have been demonstrated to exhibit a number of mechanical properties in the (quasi) static regime that are potentially very 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 compensated for by adjustments in the microstructure, since the highly dynamic impact regime is typically accompanied by large plastic deformations, geometrical and material nonlinearities, as well as rate and inertia effects. Examples of this behaviour in the static case are given
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TU Delft ; TNO, Delft ; Den Haag
24th Engineering Mechanics Symposium, Arnhem, Netherlands, 26 October and 2 November 2021