Interface design of a neutral spheroidal piezoelectric inhomogeneity in a transversely isotropic piezoelectric matrix

IF 3.6 3区材料科学 Q2 ENGINEERING, MECHANICAL International Journal of Mechanics and Materials in Design Pub Date : 2024-08-10 DOI:10.1007/s10999-024-09726-4

Xu Wang, Peter Schiavone

引用次数: 0

Abstract

We study the design of a neutral spheroidal piezoelectric inhomogeneity that does not disturb the prescribed uniform axisymmetric electromechanical loading in a piezoelectric matrix. Both the inhomogeneity and the matrix are transversely isotropic. Our design methodology is based on an imperfect interface model with infinitesimal thickness that is spring-type in elasticity and weakly conducting in dielectricity, and is characterized by two non-negative imperfect interface functions which are determined for given material properties of the composite and given geometry of the spheroid. The inhomogeneity is neutral to either a hydrostatic or non-hydrostatic stress field through the interface design. Of particular note is that for the first time, we have achieved the neutrality of a three-dimensional anisotropic piezoelectric inhomogeneity through interface design.

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横向各向同性压电矩阵中的中性球面压电不均匀体的界面设计

我们研究了中性球形压电不均匀性的设计，它不会干扰压电矩阵中规定的均匀轴对称机电载荷。不均匀性和矩阵都是横向各向同性的。我们的设计方法是基于一个具有无穷小厚度的不完美界面模型，该模型具有弹性弹簧型和介电弱导电性，并且具有两个非负不完美界面函数，这两个函数是由给定的复合材料性能和给定的球体几何形状决定的。通过界面设计，不均匀性对静水或非静水应力场都是中性的。特别值得注意的是，我们首次通过界面设计实现了三维各向异性压电不均匀性的中性。

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来源期刊

International Journal of Mechanics and Materials in Design ENGINEERING, MECHANICAL-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

6.00

自引率

5.40%

发文量

审稿时长

>12 weeks

期刊介绍： It is the objective of this journal to provide an effective medium for the dissemination of recent advances and original works in mechanics and materials'' engineering and their impact on the design process in an integrated, highly focused and coherent format. The goal is to enable mechanical, aeronautical, civil, automotive, biomedical, chemical and nuclear engineers, researchers and scientists to keep abreast of recent developments and exchange ideas on a number of topics relating to the use of mechanics and materials in design. Analytical synopsis of contents: The following non-exhaustive list is considered to be within the scope of the International Journal of Mechanics and Materials in Design: Intelligent Design: Nano-engineering and Nano-science in Design; Smart Materials and Adaptive Structures in Design; Mechanism(s) Design; Design against Failure; Design for Manufacturing; Design of Ultralight Structures; Design for a Clean Environment; Impact and Crashworthiness; Microelectronic Packaging Systems. Advanced Materials in Design: Newly Engineered Materials; Smart Materials and Adaptive Structures; Micromechanical Modelling of Composites; Damage Characterisation of Advanced/Traditional Materials; Alternative Use of Traditional Materials in Design; Functionally Graded Materials; Failure Analysis: Fatigue and Fracture; Multiscale Modelling Concepts and Methodology; Interfaces, interfacial properties and characterisation. Design Analysis and Optimisation: Shape and Topology Optimisation; Structural Optimisation; Optimisation Algorithms in Design; Nonlinear Mechanics in Design; Novel Numerical Tools in Design; Geometric Modelling and CAD Tools in Design; FEM, BEM and Hybrid Methods; Integrated Computer Aided Design; Computational Failure Analysis; Coupled Thermo-Electro-Mechanical Designs.