SILICOMB PEEK Kirigami cellular structures: mechanical response and energy dissipation through zero and negative stiffness

Virk, Kismat; Monti, Alessio; Trehard, Thomas; Marsh, Marco; Hazra, K; Boba, Kasia; Remillat, Chrystel D L; Scarpa, Fabrizio; Farrow, Ian R

doi:10.1088/0964-1726/22/8/084014

Cited by 81 publications

(51 citation statements)

References 42 publications

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“…7(a)). The cellular structures consisted in a conventional hexagonal [28], re-entrant (auxetic) [28], anti-tetrachiral (auxetic) [14], ZPR SILICOMB [15,29,30], and the two novel ZPR lattices, one with a positive and the other with a negative cell angle. All samples had the same dimensions (200 mm Â 60 mm Â 4 mm) with at least 3 complete unit cells along the width.…”

Section: Experimental Testsmentioning

confidence: 99%

Bending and benchmark of zero Poisson’s ratio cellular structures

Huang¹,

Zhang

Scarpa³

et al. 2016

Composite Structures

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a b s t r a c tThis work describes the bending performance of a zero Poisson's ratio (ZPR) cellular structure made from the tessellation of hexagons and thin plates. This particular ZPR configuration allows achieving large outof-plane deformations and tailored in-plane and out-of-plane mechanical properties. We present a series of analytical models, finite element simulations and experimental tests to evaluate the bending capability of these cellular structures. A comparison of the out-of-plane bending behavior of six different types of cellular topologies with the same relative density of the ZPR honeycomb has also been carried out by using three-point bending tests. Further parametric analyses have also been performed to determine the dependence of the equivalent bending modulus versus the geometric parameters that define the ZPR honeycomb. The novel ZPR lattices show the highest bending compliance at large strains, and highly tailorable mechanical properties for the design of composite structures for airframe morphing applications.

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Section: Experimental Testsmentioning

confidence: 99%

Bending and benchmark of zero Poisson’s ratio cellular structures

Huang¹,

Zhang

Scarpa³

et al. 2016

Composite Structures

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“…The use of cutting allows Kirigami to create honeycombs and other porous cellular configurations. Kirigami has been recently adopted to develop shape changing smart materials and morphing components [15,16], multiscale structures with unusual deformation mechanisms [17,18], soft robotics [16], high-performance cores for sandwich structures [19,20], metamaterials for wave propagation [21,22] and new classes of nanocomposite materials [23][24][25]. The first known instance of Kirigami being used to create a honeycomb is a patent filed by Dean in 1921 [26].…”

Section: Introductionmentioning

confidence: 99%

A Kirigami shape memory polymer honeycomb concept for deployment

Neville

Chen

Guo

et al. 2017

Smart Mater. Struct.

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We present a shape memory polymer (SMP) honeycomb with tuneable and shape morphing mechanical characteristics. Kirigami (Origami with cutting allowed) techniques have been used to design and manufacture the honeycomb. The cellular structure described in this work has styrene SMP hinges that create the shape change and the deployment actuation. To create a large volumetric deployment, the Kirigami open honeycomb configuration has been designed by setting an initial three-dimensional re-entrant auxetic (negative Poisson's ratio) configuration, while the final honeycomb shape assume a convex (positive Poisson's ratio) layout. A model was developed to predict the shape change of the structure, and compared to experimental results from a demonstrator honeycomb deployment test.

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“…Another subset of cellular structures is the one with zero Poisson's ratio (ZPR). ZPR has been observed in honeycomb configurations like the SILICOMB [14][15][16][17], chevron [18][19][20], and accordion [21]. No lateral coupling behavior can be observed when ZPR honeycombs are loaded uniaxially under in-plane deformations [16].…”

Section: Introductionmentioning

confidence: 99%

Shape memory polymer-based hybrid honeycomb structures with zero Poisson’s ratio and variable stiffness

Huang

Zhang

Scarpa

et al. 2017

Composite Structures

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University of Bristol -Explore Bristol Research General rightsThis document is made available in accordance with publisher policies. Please cite only the published version using the reference above. Full terms of use are available: http://www.bristol.ac.uk/pure/about/ebr-terms Abstract: This work describes the out-of-plane bending performance, shape memory effect and variable stiffness of a zero Poisson's ratio honeycomb structure made from the tessellation of re-entrant hexagons and thin plates. The re-entrant hexagons are fabricated with ABS plastics and the thin plates are made from thermosetting styrene-based shape memory polymers (SMPs). The hexagons and the SMP plates are bonded within the groove joints in the thickness direction of the re-entrant cell units. The re-entrant hexagons generate out-of-plane flatwise compressive stiffness and in-plane compliance, while the SMPs thin plates support out-of-plane flexibility, the shape memory effect and a variable bending stiffness. Because the ABS plastics possesses a significantly higher glass transition temperature than the SMPs, the ZPR honeycomb structure features a higher out-of-plane flexibility when the environmental temperature rises from room temperature to the glass transition temperature of the SMPs. On the contrary, the flatwise compressive stiffness of the ZPR honeycomb remains unchanged. Three-point bending tests have also been performed to determine the out-of-plane bending performance of the ZPR structures at varying temperatures.

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SILICOMB PEEK Kirigami cellular structures: mechanical response and energy dissipation through zero and negative stiffness

Cited by 81 publications

References 42 publications

Bending and benchmark of zero Poisson’s ratio cellular structures

Bending and benchmark of zero Poisson’s ratio cellular structures

A Kirigami shape memory polymer honeycomb concept for deployment

Shape memory polymer-based hybrid honeycomb structures with zero Poisson’s ratio and variable stiffness

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