Quasi‐Static Mechanical Properties of a Modified Auxetic Re‐Entrant Honeycomb Metamaterial
Sai Bao, Xin Ren, Yu Jun Qi, Hao Ran Li, Dong Han, Wei Li, Chen Luo, Zhong Zheng Song
Abstract
As shown in article number 2200270 by Xin Ren, Yu Jun Qi, and co-workers, adding two curved ribs to the conventional re-entrant (CRE) honeycomb structure leads to the formation of a modified auxetic re-entrant (MRE) honeycomb structure. During the quasi-static compression process, two plateau stresses occur in the load–displacement curves of the structure. Moreover, the energy-absorbing performance of the MRE honeycomb structure is substantially improved with the occurrence of the second plateau stress. Due to their desirable mechanical properties, the MRE honeycomb structures have great potential for applications in civil engineering, vehicle crashworthiness, and protective infrastructure.