Bending deformation of honeycomb consisting of regular hexagonal cells

Chen, D.H.

doi:10.1016/j.compstruct.2010.08.006

Cited by 67 publications

(18 citation statements)

References 20 publications

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“…Different honeycomb configurations result in different values of the in-plane Poisson's ratio. A variety of honeycomb configurations achieving positive/negative/zero Poisson's ratio have been proposed and investigated with special focus on the in-plane mechanics, flatwise compressive strength and the transverse shear modulus [9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25]. Honeycombs with negative Poisson's ratio (NPR) can likewise be described as auxetic [26][27][28].…”

Section: Introductionmentioning

confidence: 99%

In-plane elasticity of a novel auxetic honeycomb design

Huang

Zhang

Scarpa

et al. 2017

Composites Part B: Engineering

128

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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 presents a novel negative Poisson's ratio honeycomb design composed by two parts (a re-entrant hexagonal component and a thin plate part) that provide separate contributions to the in-plane and out-of-plane mechanical properties. The re-entrant hexagons provide the in-plane negative Poisson's ratio, the in-plane compliance and the out-of-plane compressive strength, while the thin plate part connecting the re-entrant hexagonal section bears the large out-of-plane flexibility. This paper focuses on the in-plane mechanical properties of the auxetic cellular structure. Theoretical models related to the in-plane uniaxial tensile modulus, the shear modulus, and the Poisson's ratios have been built and validated using the finite element techniques. The in-plane behavior of the honeycomb has also been investigated against the geometrical parameters of the unit cell using a parametrical analysis. The theoretical and numerical models illustrate good agreement and show the potential of its application in morphing structures. We also provide a benchmark of the auxetic configuration proposed in this work against negative Poisson's ratio topologies from open literature.

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Section: Introductionmentioning

confidence: 99%

In-plane elasticity of a novel auxetic honeycomb design

Huang

Zhang

Scarpa

et al. 2017

Composites Part B: Engineering

128

View full text Add to dashboard Cite

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“…3(c)). Earlier research has shown that the torsional coefficient of a thin plate can be effected by only two factors: the Poisson's ratio t and the ratio between length and height h 1 /l 1 [24]. In these simulations the dependence of the torsional coefficient versus varying Poisson's ratios and different height/length ratios has been investigated.…”

Section: Analytical Modelsmentioning

confidence: 97%

“…Alderson et al [16] has investigated the bending behaviour of 3-coordinated ligament and cylinder-ligament honeycombs using finite element (FE) simulations. Chen has performed a thorough investigation about the bending of conventional hexagonal honeycombs and also found that the Kirchhoff hypothesis underpinning the calculation of the flexural stiffness derived from the homogenized membrane (in-plane) properties of the honeycomb cannot be used to evaluate the out-of-plane bending performance [24,25].…”

Section: Introductionmentioning

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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“…Gibson [8] deduced the honeycomb material equivalent parameter, the relative elasticity modulus, the shear modulus and Poisson's ratio. Fu Minghui and Yin Jiuren [9] discovered some flaws in the Gibson formula and proceeded to revise it. Chung.J and Waas AM [10] studied the compressive response of circular cell polycarborate honeycombs under inplane biaxial static and dynamic was stresses-experiments.…”

Section: Introductionmentioning

confidence: 99%

“…[1][2][3][4][5][6][7][8][9][10][11][12][13]. For example, Dynamic and static compression tests for paper honeycomb cores and absorbed energy were gotten by Kobayashi H [4].…”

Section: Introductionmentioning

confidence: 99%

The Conformance Analysis on Bending Forming of Honeycomb Carton

Chen¹,

Lv²

2014

TOCSJ

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Geometry constructions of honeycomb core are finding increasing use because of their relative advantages over other structural materials in terms of improved stability, high stiffness to weight and strength to weight ratios. It provides an efficient solution to increase bending stiffness without significant increase in structural weight. However, honeycomb carton, as a new product of paper honeycomb, has been made by bending forming and failure process of paper honeycomb. Theoretical analysis on bending mechanical properties of paper honeycomb has been done. Then a model has been built on finite element analysis (FEA) software and analyzed its nonlinear bending process. The shear deformation process of honeycomb carton may be approximately categorized into four phases: linear elastic phase, elastic-plasticity phase, plasticity collapse phase, densification and fracture phase. In order to get precise results, not only shear force but also the failure process of paper-core should be considered. Therefore, the curve of external force and the shear deformation process has been analyzed. In addition, stress concentrations due to bending load and cohesive force have been eliminated by drying process of honeycomb carton. At last, the results are introduced by experiment and put into practice.

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Bending deformation of honeycomb consisting of regular hexagonal cells

Cited by 67 publications

References 20 publications

In-plane elasticity of a novel auxetic honeycomb design

In-plane elasticity of a novel auxetic honeycomb design

Bending and benchmark of zero Poisson’s ratio cellular structures

The Conformance Analysis on Bending Forming of Honeycomb Carton

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