2023
DOI: 10.1088/1361-665x/acb6d9
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3D printed negative stiffness meta-structures with superior energy absorption and super-elastic shape-recovery features

Abstract: The aim of this paper is to create novel 3D cubic negative stiffness structures (NSSs) with superior mechanical performances such as high energy absorption, shape recovery, super-elasticity, and reversibility. The conceptual design is based on an understanding of geometrical influences, non-linear buckling-type instability, snap-through mechanism, elasto-plastic deformation growth and plastic hinges. A finite element (FE) based computational model with an elasto-plastic material behavior is developed to design… Show more

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Cited by 10 publications
(2 citation statements)
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“…Metamaterials represent a novel class of materials, and exhibit extraordinary properties that are not typically found in natural materials [1][2][3][4][5][6][7][8][9][10]. These materials have found widespread applications in fields such as optics [11], acoustics [12], mechanics [13][14][15][16][17].…”
Section: Introductionmentioning
confidence: 99%
“…Metamaterials represent a novel class of materials, and exhibit extraordinary properties that are not typically found in natural materials [1][2][3][4][5][6][7][8][9][10]. These materials have found widespread applications in fields such as optics [11], acoustics [12], mechanics [13][14][15][16][17].…”
Section: Introductionmentioning
confidence: 99%
“…Hosseinabadi et al [4] 3D printed Energy-absorbing, shape-recovering meta-structures with negative stiffness. The meta-structures were made with a 3D printing method called selective laser sintering.…”
mentioning
confidence: 99%