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Analysis of
mechanical properties in negative Poisson's ratio
metamaterials
JunGang Huang and Biao Li |
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Vol. 19 (2024), No. 5, 787–799
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Abstract |
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The mechanical properties of an auxetic metamaterial (one with negative Poisson’s ratio) derived from hinged triangles were investigated. First, a general coordinate formula is given, and a method for the rapid prediction of the Poisson’s ratio and mechanical properties of such models is developed by combining the finite element method with homogenization techniques. The effects of rotation angle and side length on the Poisson’s ratios and effective moduli in the - and -directions are discussed and experimentally validated. Finally, the mechanical properties of 3D auxetic materials composed of different angles and side lengths are analyzed. The results show that the proposed method accurately forecasts the mechanical behavior of the model. These analyses provide a theoretical foundation for the rapid design of negative Poisson’s ratio structures based on mechanical performance requirements. |
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Keywords
negative Poisson's ratio structure, mechanical property
prediction, different rotation angles and slenderness
ratios, 3D auxetic structure
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Milestones
Received: 30 May 2024
Revised: 5 September 2024
Accepted: 21 September 2024
Published: 30 October 2024
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Authors |
| JunGang Huang | |
| Changzhou Technician College Changzhou, 213017 China |
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| Biao Li | |
| Transportation Science and
Engineering College Civil Aviation University of China TianJin, 300300 China |
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| © 2024 The Author(s), under exclusive license to MSP (Mathematical Sciences Publishers). |
