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Force-displacement relationship in micro-metric pantographs: experiments and numerical simulations

Abstract : In this paper, we reveal that the mathematical discrete model of Hencky type, introduced in [1], is appropriate for describing the mechanical behavior of micro-metric pantographic elementary modules. This behavior does not differ remarkably from what has been observed for milli-metric modules, as we prove with suitably designed experiments. Therefore, we conclude that the concept of pantographic microstructure seems feasible for micro-metrically architected microstructured (meta)materials as well. These results are particularly indicative of the possibility of fabricating materials that can have an underlying pantographic microstructure at micrometric scale, so that its unique behavior can be exploited in a larger range of technological applications.
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Francesco Dell'Isola, Emilio Turco, Anil Misra, Zacharias Vangelatos, Costas Grigoropoulos, et al.. Force-displacement relationship in micro-metric pantographs: experiments and numerical simulations. Comptes Rendus Mécanique, Elsevier Masson, 2019, 347 (5), pp.397-405. ⟨10.1016/j.crme.2019.03.015⟩. ⟨hal-02269992⟩

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