On the mechanical response of multilayered pentamode lattices equipped with hinged and rigid nodes

Ada Amendola, Ida Mascolo and Gianmario Benzoni

PSU Research Review, 2018, vol. 2, issue 2, 138-144

Abstract: Purpose - This paper aims to review recent literature results on the mechanical response of confined pentamode structures behaving either in the stretching-dominated or the bending-dominated regimes. Design/methodology/approach - The analyzed structures consist of multilayer systems formed by pentamode lattices alternated with stiffening plates and are equipped with rigid or hinged connections. Findings - It is shown that such structures are able to carry unidirectional compressive loads with sufficiently high stiffness, while showing markedly low stiffness against shear loads. In particular, their shear stiffness may approach zero in the stretching-dominated regime. Originality/value - The presented results highlight the high engineering potential of laminated pentamode metamaterials as novel isolation devices to be used for the protection of buildings against shear waves.

Keywords: Bending-dominated regime; Layered systems; Pentamode lattices (search for similar items in EconPapers)
Date: 2018
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Persistent link: https://EconPapers.repec.org/RePEc:eme:prrpps:prr-07-2018-0022

DOI: 10.1108/PRR-07-2018-0022

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