Open Access

ARTICLE

Topology Optimization of Metamaterial Microstructures for Negative Poisson’s Ratio under Large Deformation Using a Gradient-Free Method

Weida Wu, Yiqiang Wang, Zhonghao Gao, Pai Liu^*

State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Dalian, 116024, China

* Corresponding Author: Pai Liu. Email: