Wave Propagation Characteristics in Thick Conventional and Auxetic Cellular Plates  

作　　者：Xiaojian Xu Zichen Deng 

机构地区：[1]Key Laboratory for Special Area Highway Engineering of Ministry of Education,School of Highway,Chang'an University [2]Department of Engineering Mechanics,Northwestern Polytechnical University

出　　处：《Acta Mechanica Solida Sinica》2016年第2期159-166,共8页固体力学学报（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(No.11172239);the 111 project(No.B07050);the Doctoral Program Foundation of Education Ministry of China(20126102110023)

摘　　要：Based on Mindlin plate models and Kirchhoff plate models,this study was concerned with the wave propagation characteristics in thick conventional and auxetic cellular structures,with the objective to clarify the effects of negative Poisson＇s ratio,shear factor and orthotropic mechanical properties on the dynamic behaviors of thick plates.Numerical results revealed that the predictions using variable shear factor in Mindlin plate models resulted in high wave frequencies,which were more significant for plates with negative values of Poisson＇s ratio.The present study can be useful for the design of critical applications by varying the values of Poisson＇s ratio.Based on Mindlin plate models and Kirchhoff plate models,this study was concerned with the wave propagation characteristics in thick conventional and auxetic cellular structures,with the objective to clarify the effects of negative Poisson＇s ratio,shear factor and orthotropic mechanical properties on the dynamic behaviors of thick plates.Numerical results revealed that the predictions using variable shear factor in Mindlin plate models resulted in high wave frequencies,which were more significant for plates with negative values of Poisson＇s ratio.The present study can be useful for the design of critical applications by varying the values of Poisson＇s ratio.

关 键 词：auxetic cellular structure plate frequency shear factor negative Poisson＇s ratio 

分 类 号：TB383.4[一般工业技术—材料科学与工程]