Layerwise third-order shear deformation theory with transverse shear stress continuity for piezolaminated plates

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外文摘要：Regarding laminated structures,an electromechanically coupled Finite Element(FE)model based on Layerwise Third-Order Shear Deformation(LW-TOSD)theory is proposed for sta-tic and dynamic analysis.LW-TOSD ensures the continuity of in-plane displacements and trans-verse shear stresses.The current LW-TOSD can be applied to arbitrary multi-layer laminated structures with only seven Degrees of Freedom(DOFs)for each element node and eliminates the use of the shear correction factors.Moreover,a shear penalty stiffness matrix is constructed to sat-isfy artificial constraints to optimize the structural shear strain.A dynamic finite element model is obtained based on LW-TOSD using the Hamilton's principle.First,the accuracy of the current model is validated by comparing with literature and ABAQUS results.Then,this study carries out numerical investigations of piezolaminated structures for different width-to-thickness ratios,length-to-width ratios,penalty stiffness matrix,boundary conditions,electric fields and dynamics.

外文关键词：

Laminated structuresPiezolaminated structuresThird-order shear deforma-tion theoryShear stress continuityElectromechanically coupled

作者：

Yingshan GAO、Shunqi ZHANG、Wei HU、Songyun MA、Bernd MARKERT

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作者单位：

School of Mechatronic Engineering and Automation,Shanghai University,Shanghai 200444,China

Key Laboratory of Silicate Cultural Relics Conservation(Shanghai University),Ministry of Education,Shanghai 200444,China

Institute of General Mechanics,RWTH Aachen University,Aachen 52062,Germany

基金：

National Natural Science Foundation of ChinaNatural Science Foundation of Shanghai,China

项目编号：

1197202021ZR1424100

出版年：

2024

DOI：

10.1016/j.cja.2024.07.013

中国航空学报(英文版)

中国航空学会

中国航空学报(英文版)

CSTPCDEI

影响因子：0.847

ISSN：1000-9361

年,卷(期)：2024.37(9)