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Title: A quest for 2D lattice materials for actuation
Authors: Pronk, T. N.
Ayaş, C.
Tekoğlu, Cihan
Keywords: Cellular solids
Lattice materials
Static/kinematic determinacy
Finite element method
Issue Date: Aug-2017
Publisher: Pergamon-Elsevier Science Ltd
Source: Pronk, T. N., Ayas, C., & Tekoglu, C. (2017). A quest for 2D lattice materials for actuation. Journal of the Mechanics and Physics of Solids, 105, 199-216.
Abstract: In the last two decades, most of the studies in shape morphing technology have focused on the Kagome lattice materials, which have superior properties such as in-plane isotropy, high specific stiffness and strength, and low energy requirement for actuation of its members. The Kagome lattice is a member of the family of semi-regular tessellations of the plane. Two fundamental questions naturally arise: i-) What makes a lattice material suitable for actuation? ii-) Are there other tessellations more effective than the Kagome lattice for actuation? The present paper tackles both questions, and provides a clear answer to the first one by comparing an alternative lattice material, the hexagonal cupola, with the Kagome lattice in terms of mechanical/actuation properties. The second question remains open, but, hopefully easier to challenge owing to a newly-discovered criterion: for an n-dimensional (n = 2, 3) in-plane isotropic lattice material to be suitable for actuation, its pin jointed equivalent must obey the generalised Maxwell's rule, and must possess M = 3 (n 1) non strain-producing finite kinematic mechanisms. (C) 2017 Elsevier Ltd. All rights reserved.
ISSN: 0022-5096
Appears in Collections:Makine Mühendisliği Bölümü / Department of Mechanical Engineering
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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