Quasi-All-Directional Negative Stiffness Metamaterials Based on Negative Rotation Stiffness Elements

Shaowei Zhu; Xiaojun Tan; Shuai Chen; Bing Wang; Li Ma; Linzhi Wu

doi:10.1002/pssb.201900538

Quasi-All-Directional Negative Stiffness Metamaterials Based on Negative Rotation Stiffness Elements

Shaowei Zhu, Xiaojun Tan, Shuai Chen, Bing Wang, Li Ma, Linzhi Wu

Harbin Institute of Technology

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

Abstract

Most negative stiffness metamaterials exhibit negative stiffness effects in only one direction. Herein, based on the theory of anisotropy, the concept of “negative stiffness” is redefined. A method to determine whether a material has all-directional negative stiffness is proposed. The possibility and difficulty of achieving all-directional negative stiffness are discussed. A new type of negative stiffness metamaterial comprising negative stiffness rotation hinges and rigid trusses is studied. The results show that quasi-all-directional negative stiffness is achievable.

Original language	English
Article number	1900538
Journal	Physica Status Solidi (B) Basic Research
Volume	257
Issue number	6
DOIs	https://doi.org/10.1002/pssb.201900538
State	Published - 1 Jun 2020
Externally published	Yes

Keywords

auxetic materials
mechanical metamaterials
negative Poisson's ratio
negative stiffness

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title = "Quasi-All-Directional Negative Stiffness Metamaterials Based on Negative Rotation Stiffness Elements",

abstract = "Most negative stiffness metamaterials exhibit negative stiffness effects in only one direction. Herein, based on the theory of anisotropy, the concept of “negative stiffness” is redefined. A method to determine whether a material has all-directional negative stiffness is proposed. The possibility and difficulty of achieving all-directional negative stiffness are discussed. A new type of negative stiffness metamaterial comprising negative stiffness rotation hinges and rigid trusses is studied. The results show that quasi-all-directional negative stiffness is achievable.",

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author = "Shaowei Zhu and Xiaojun Tan and Shuai Chen and Bing Wang and Li Ma and Linzhi Wu",

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T1 - Quasi-All-Directional Negative Stiffness Metamaterials Based on Negative Rotation Stiffness Elements

AU - Zhu, Shaowei

AU - Tan, Xiaojun

AU - Chen, Shuai

AU - Wang, Bing

AU - Ma, Li

AU - Wu, Linzhi

PY - 2020/6/1

Y1 - 2020/6/1

N2 - Most negative stiffness metamaterials exhibit negative stiffness effects in only one direction. Herein, based on the theory of anisotropy, the concept of “negative stiffness” is redefined. A method to determine whether a material has all-directional negative stiffness is proposed. The possibility and difficulty of achieving all-directional negative stiffness are discussed. A new type of negative stiffness metamaterial comprising negative stiffness rotation hinges and rigid trusses is studied. The results show that quasi-all-directional negative stiffness is achievable.

AB - Most negative stiffness metamaterials exhibit negative stiffness effects in only one direction. Herein, based on the theory of anisotropy, the concept of “negative stiffness” is redefined. A method to determine whether a material has all-directional negative stiffness is proposed. The possibility and difficulty of achieving all-directional negative stiffness are discussed. A new type of negative stiffness metamaterial comprising negative stiffness rotation hinges and rigid trusses is studied. The results show that quasi-all-directional negative stiffness is achievable.

KW - auxetic materials

KW - mechanical metamaterials

KW - negative Poisson's ratio

KW - negative stiffness

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DO - 10.1002/pssb.201900538

M3 - 文章

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JO - Physica Status Solidi (B) Basic Research

JF - Physica Status Solidi (B) Basic Research

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M1 - 1900538

ER -

Quasi-All-Directional Negative Stiffness Metamaterials Based on Negative Rotation Stiffness Elements

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Keywords

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