Electro-mechanical analysis of composite and sandwich multilayered structures by shell elements with node-dependent kinematics

作     者：E.Carrera S.Valvano G.M.Kulikov 

作者机构：Department of Mechanical and Aerospace EngineeringPolitecnico di TorinoTurinItaly Laboratory of Intelligent Materials and StructuresTambov State Technical UniversityTambovRussia 

出 版 物：《International Journal of Smart and Nano Materials》 (国际智能和纳米材料杂志（英文）)

年 卷 期：2018年第9卷第1期

页      面：1-33,I0001页

核心收录：

学科分类：07[理学] 0701[理学-数学] 070101[理学-基础数学] 

基　　金：This work was supported by the Russian Science Foundation[15-19-30002] 

主　　题：Shell piezo composite structures global/local analysis Unified formulation nodedependent kinematics 

摘      要：In this work,a new class of finite elements for the analysis of composite and sandwich shells embedding piezoelectric skins and patches is *** main idea of models coupling is developed by presenting the concept of nodal dependent kinematics where the same finite element can present at each node a different approximation of the main unknowns by setting a nodewise through-the-thickness approximation *** a global/local approach scenario,the computational costs can be reduced drastically by assuming refined theories only in those zones/nodes of the structural domain where the resulting strain and stress states,and their electro-mechanical coupling present a complex *** numerical investigations are carried out to validate the accuracy and efficiency of the present shell *** accurate representation of mechanical stresses and electric displacements in localized zones is possible with reduction of the computational costs if an accurate distribution of the higherorder kinematic capabilities is *** the contrary,the accuracy of the solution in terms of mechanical displacements and electric potential values depends on the global approximation over the whole *** efficacy of the present node-dependent variable kinematic models,thus,depends on the characteristics of the problem under consideration as well as on the required analysis type.