Isogeometric Analysis(IGA)-Based Topology Optimization for 3D Flexoelectric Structures

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外文摘要：This paper presents isogeometric analysis(IGA)-based topology optimization for electrical performance of three-dimensional(3D)flexoelectric structures.IGA is employed to provide C1 continuity in shape function,which is required in treating high-order electromechanical coupling equations.To improve the computational efficiency in treating 3D problems,the redundant degrees of freedom removal technique is introduced.Regularization treatments are also implemented to avoid the numerical singularity induced by flexoelectricity.Both virtual loads and strain energy constraints are taken into consideration to prevent unexpected structural disconnection.Numerical examples and experiments on optimized structures demonstrate that the flexoelectric performance can be effectively improved using the proposed approach.

外文关键词：

Topology optimizationFlexoelectricityIsogeometric analysis(IGA)Degrees of freedom removal

作者：

Yao Meng、Xiaoye Yan、Weisheng Zhang

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作者单位：

State Key Laboratory of Structural Analysis for Industrial Equipment,Department of Engineering Mechanics,Dalian University of Technology,Dalian 116023,China

Ningbo Institute of Dalian University of Technology,Jiangbei District,No.26 Yucai Road,Ningbo 315016,China

基金：

National Natural Science Foundation of ChinaLiao Ning Revitalization Talents ProgramLiao Ning Revitalization Talents ProgramFundamental Research Funds for the Central UniversitiesProgram for Changjiang Scholars,Innovative Research Team in University(PCSIRT)111 Project

项目编号：

12272075XLYC2001003XLYC1907119DUT22QN238B14013

出版年：

2024

DOI：

10.1007/s10338-024-00479-3

固体力学学报(英文版)

中国力学学会

固体力学学报(英文版)

影响因子：0.214

ISSN：0894-9166

年,卷(期)：2024.37(4)