Novel self-similar re-entrant auxetic metamaterials (SREAM): Design, mechanical property, and geometric optimization

Dong，Peng1; Hou，Runsheng1; Hu，Jiayi1; Lin，Chen2; Liu，Yuqing3; Qin，Lei4

2023-05-01

10.1016/j.polymertesting.2023.108015

Polymer Testing   Impact Factor & Quartile

0142-9418

In this study, a novel self-similar re-entrant auxetic metamaterial (SREAM) was designed to improve its mechanical performance compared with the conventional re-entrant structure (CRS). Experimental and numerical analyses were carried out to investigate their mechanical performance under quasi-static compression. The mechanical effects of key geometric parameters of inner re-entrants have also been symmetrically investigated to provide the modeling basis for SREAMs’ geometric optimization. It was found that SREAM do well in both stiffness and auxeticity simultaneously. The mechanical performance of SREAMs is highly adjustable via proper configuration on geometric parameters. The proposed SREAM possibly provides superior auxeticity and high stiffness, with adjustable performance.

Auxetic Geometric optimization Mechanical stability Re-entrant Self-similar

English

First

Science, Technology and Innovation Commission of Shenzhen Municipality[ZDSYS20210623092005017];

MATERIALS SCIENCE

2-s2.0-85151676624

Scopus

1.Shenzhen Key Laboratory of Soft Mechanics & Smart Manufacturing,Department of Mechanics and Aerospace Engineering,Southern University of Science and Technology,Shenzhen,518055,China
2.Department of Manufacturing and Civil Engineering,Norwegian University of Science and Technology (NTNU),Teknologiveien 22, Gjøvik,2815,Norway
3.School of Transportation,Civil Engineering & Architecture,Foshan University,Foshan,528225,China
4.School of Civil Engineering and Architecture,University of Jinan,Jinan,250022,China

Dong，Peng,Hou，Runsheng,Hu，Jiayi,et al. Novel self-similar re-entrant auxetic metamaterials (SREAM): Design, mechanical property, and geometric optimization[J]. Polymer Testing,2023,122.

Dong，Peng,Hou，Runsheng,Hu，Jiayi,Lin，Chen,Liu，Yuqing,&Qin，Lei.(2023).Novel self-similar re-entrant auxetic metamaterials (SREAM): Design, mechanical property, and geometric optimization.Polymer Testing,122.

Dong，Peng,et al."Novel self-similar re-entrant auxetic metamaterials (SREAM): Design, mechanical property, and geometric optimization".Polymer Testing 122(2023).