Mechanical Janus lattice with plug-switch orientation  

作　　者：Yupei Zhang Jiawei Zhong Zhengcai Zhao Ruiyu Bai Yanqi Yin Yang Yu Bo Li 

机构地区：[1]State Key Laboratory for Manufacturing System EngineeringShaanxi Key Laboratory of Intelligent Robots School of Mechanical Engineering,Xi’an Jiaotong University,Xi’an 710049,China [2]Qian Xuesen Honors College,Xi’an Jiaotong University,Xi’an 710049,China

出　　处：《Theoretical & Applied Mechanics Letters》2024年第1期23-26,共4页力学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.52075411 and U1913213);Shaanxi Key Research and Development Program(Grant No.2020ZDLGY06-11).

摘　　要：In recent years,materials with asymmetric mechanical response properties(mechanical Janus materials)have been found possess numerous potential applications,i.e.shock absorption and vibration isolation.In this study,we propose a novel mechanical Janus lattice whose asymmetric mechanical response can be switched in orientation by a plug.Through finite element analysis and experimental verification,this lattice exhibits asymmetric displacement responses to symmetric forces.Furthermore,with such a plug structure inside,individual lattices can switch the orientation of asymmetry and thus achieve reprogrammable design of a mechanical structure with chained lattices.The reprogrammable asymmetry of this material will offer multiple functions in design of mechanical metamaterials.

关 键 词：JANUS Non-reciprocity PROGRAMMABILITY Mechanical metamaterial 

分 类 号：TB34[一般工业技术—材料科学与工程]