On the design, elastic modeling and experimental characterization of novel tensegrity units

Zbigniew Bieniek, Ida Mascolo and Ada Amendola

PSU Research Review, 2018, vol. 2, issue 2, 145-151

Abstract: Purpose - This study aims to focus on a short review on recent results dealing with the mechanical modelling and experimental characterization of a novel class of tensegrity structures, named classθ= 1 tensegrity prisms. The examined structures exhibit six bars connected by two disjoint sets of strings. Design/methodology/approach - First, the self-equilibrium problem of tensegrityθ= 1 prisms is numerically investigated for varying values of two aspect parameters and, next, their prestress stability is studied. The mechanical behavior of the examined structures in the large displacements regime under uniform compression loading is also numerically computed through a path-following procedure. Finally, the predicted constitutive response is validated through experimental tests. Findings - The presented results highlight that the examined structures exhibit a large number of infinitesimal mechanisms from the freestanding configuration, and reveal that they exhibit tunable elastic response switching from stiffening to softening. Originality/value - This multi-faceted elastic response is in agreement with previous literature results on the elastic response of minimal tensegrity prism, and suggests that such units can be usefully used as non-linear springs in next-generation tensegrity metamaterials.

Keywords: Class theta tensegrity prism; Lattice metamaterials; Form-finding; Prestress stability; Path following; Large displacements (search for similar items in EconPapers)
Date: 2018
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Persistent link: https://EconPapers.repec.org/RePEc:eme:prrpps:prr-07-2018-0019

DOI: 10.1108/PRR-07-2018-0019

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