Study of In-Plane Mechanical Properties of Novel Ellipse-Based Chiral Honeycomb Structure
| Autor: | Wei Wang, Jianjie Wang, Hong Hai, Weikai Xu, Xiaoming Yu |
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| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: | |
| Zdroj: | Applied Sciences, Vol 12, Iss 20, p 10437 (2022) |
| Druh dokumentu: | article |
| ISSN: | 2076-3417 73814962 |
| DOI: | 10.3390/app122010437 |
| Popis: | In this paper, we propose an elliptical anti-tetrachiral honeycombs structure (E-antitet) with in-plane negative Poisson’s ratio (NPR) and orthogonal anisotropy. The analytical and numerical solutions of the in-plane Poisson’s ratio and Young’s modulus are given by theoretical derivations and finite element method (FEM) numerical simulations and are verified experimentally by a 3D printed sample. Finally, we analyzed the influences of different parameters on the in-plane Poisson’s ratio and Young’s modulus of E-antitet. The results show that the proposed E-antitet can achieve a smaller Poisson’s ratio and larger Young’s modulus in the desired direction compared with the anti-tetrachiral honeycombs structure (antitet), and moreover, the E-antitet has a more flexible means of regulation than the antitet. The analytical results of this paper provide meaningful guidance for the design of chiral honeycomb structures. |
| Databáze: | Directory of Open Access Journals |
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