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The two-dimensional elasticity of a chiral hinge lattice metamaterial

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The two-dimensional elasticity of a chiral hinge lattice metamaterial. / Zhang, Wenjiao; Neville, Robin; Zhang, Dayi; Scarpa, Fabrizio; Wang, Lifeng; Lakes, Roderick.

In: International Journal of Solids and Structures, Vol. 141-142, 01.06.2018, p. 254-263.

Research output: Contribution to journalArticle

Harvard

Zhang, W, Neville, R, Zhang, D, Scarpa, F, Wang, L & Lakes, R 2018, 'The two-dimensional elasticity of a chiral hinge lattice metamaterial', International Journal of Solids and Structures, vol. 141-142, pp. 254-263. https://doi.org/10.1016/j.ijsolstr.2018.02.027

APA

Zhang, W., Neville, R., Zhang, D., Scarpa, F., Wang, L., & Lakes, R. (2018). The two-dimensional elasticity of a chiral hinge lattice metamaterial. International Journal of Solids and Structures, 141-142, 254-263. https://doi.org/10.1016/j.ijsolstr.2018.02.027

Vancouver

Zhang W, Neville R, Zhang D, Scarpa F, Wang L, Lakes R. The two-dimensional elasticity of a chiral hinge lattice metamaterial. International Journal of Solids and Structures. 2018 Jun 1;141-142:254-263. https://doi.org/10.1016/j.ijsolstr.2018.02.027

Author

Zhang, Wenjiao ; Neville, Robin ; Zhang, Dayi ; Scarpa, Fabrizio ; Wang, Lifeng ; Lakes, Roderick. / The two-dimensional elasticity of a chiral hinge lattice metamaterial. In: International Journal of Solids and Structures. 2018 ; Vol. 141-142. pp. 254-263.

Bibtex

@article{fb0135b96fb8497b8325a6c4d8c3cc0b,
title = "The two-dimensional elasticity of a chiral hinge lattice metamaterial",
abstract = "We present a lattice structure defined by patterns of slits that follow a rotational symmetry (chiral) configuration. The chiral pattern of the slits creates a series of hinges that produce deformation mechanisms for the lattice due to bending of the ribs, leading to a marginal negative Poisson’s ratio. The engineering constants are modelled using theoretical and numerical Finite Element simulations. The results are benchmarked with experimental data obtained from uniaxial and off-axis tensile tests, with an overall excellent agreement. The chiral hinge lattice is almost one order of magnitude more compliant than other configurations with patterned slits and - in contrast to other chiral micropolar media - exhibits an in-plane shear modulus that closely obeys the relation between Young’s modulus and Poisson’s ratio in homogeneous isotropic linear elastic materials.",
keywords = "Chiral, Elasticity, Lattice, Metamaterial, Shear, Tension",
author = "Wenjiao Zhang and Robin Neville and Dayi Zhang and Fabrizio Scarpa and Lifeng Wang and Roderick Lakes",
year = "2018",
month = "6",
day = "1",
doi = "10.1016/j.ijsolstr.2018.02.027",
language = "English",
volume = "141-142",
pages = "254--263",
journal = "International Journal of Solids and Structures",
issn = "0020-7683",
publisher = "Pergamon Press",

}

RIS - suitable for import to EndNote

TY - JOUR

T1 - The two-dimensional elasticity of a chiral hinge lattice metamaterial

AU - Zhang, Wenjiao

AU - Neville, Robin

AU - Zhang, Dayi

AU - Scarpa, Fabrizio

AU - Wang, Lifeng

AU - Lakes, Roderick

PY - 2018/6/1

Y1 - 2018/6/1

N2 - We present a lattice structure defined by patterns of slits that follow a rotational symmetry (chiral) configuration. The chiral pattern of the slits creates a series of hinges that produce deformation mechanisms for the lattice due to bending of the ribs, leading to a marginal negative Poisson’s ratio. The engineering constants are modelled using theoretical and numerical Finite Element simulations. The results are benchmarked with experimental data obtained from uniaxial and off-axis tensile tests, with an overall excellent agreement. The chiral hinge lattice is almost one order of magnitude more compliant than other configurations with patterned slits and - in contrast to other chiral micropolar media - exhibits an in-plane shear modulus that closely obeys the relation between Young’s modulus and Poisson’s ratio in homogeneous isotropic linear elastic materials.

AB - We present a lattice structure defined by patterns of slits that follow a rotational symmetry (chiral) configuration. The chiral pattern of the slits creates a series of hinges that produce deformation mechanisms for the lattice due to bending of the ribs, leading to a marginal negative Poisson’s ratio. The engineering constants are modelled using theoretical and numerical Finite Element simulations. The results are benchmarked with experimental data obtained from uniaxial and off-axis tensile tests, with an overall excellent agreement. The chiral hinge lattice is almost one order of magnitude more compliant than other configurations with patterned slits and - in contrast to other chiral micropolar media - exhibits an in-plane shear modulus that closely obeys the relation between Young’s modulus and Poisson’s ratio in homogeneous isotropic linear elastic materials.

KW - Chiral

KW - Elasticity

KW - Lattice

KW - Metamaterial

KW - Shear

KW - Tension

UR - http://www.scopus.com/inward/record.url?scp=85042877487&partnerID=8YFLogxK

U2 - 10.1016/j.ijsolstr.2018.02.027

DO - 10.1016/j.ijsolstr.2018.02.027

M3 - Article

VL - 141-142

SP - 254

EP - 263

JO - International Journal of Solids and Structures

JF - International Journal of Solids and Structures

SN - 0020-7683

ER -