Effective magneto-electro-elastic moduli for multiferroic nanofibrous composites with imperfect interface

IF 2.3 3区工程技术 Q2 MECHANICS

Acta Mechanica Pub Date : 2024-12-02 DOI:10.1007/s00707-024-04168-7

Lihong Chang, Simiao Cheng, Jiansheng Zhang, Wenshuai Wang

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引用次数: 0

Abstract

As an important class of functional materials, the multiferroic piezoelectric/piezomagnetic nanocomposites are widely used in sensors and actuators of advanced functional devices. The interface effects have become a key issue in designing and regulating the physical properties of such nanocomposites. This paper investigates the magneto-electro-elastic (MEE) responses for multiferroic fibrous nanocomposites with imperfectly bonded interface under far-field anti-plane shear and in-plane electric and magnetic loadings. On this basis, the analytical solutions of the effective MEE moduli of the multiferroic nanocomposites are obtained by using a generalized self-consistent method combined with the complex variable method. The present analytical solutions considering the nanointerface stresses and imperfect interface effect are verified by comparing with existing analytical solutions for simplified problem. Numerical analysis is conducted for different types of composite materials, and the effect of nanointerface stresses, imperfect interface parameters and volume fraction on the six components of MEE effective modulus is discussed in detail. The proposed theoretical estimation of effective moduli has certain theoretical value for the design and optimization of multiferroic nanocomposites.

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非完美界面多铁纳米纤维复合材料的有效磁电弹性模量

多铁性压电/压磁纳米复合材料作为一类重要的功能材料，广泛应用于先进功能器件的传感器和执行器中。界面效应已成为设计和调控纳米复合材料物理性能的关键问题。研究了具有非完美粘结界面的多铁纤维纳米复合材料在远场反平面剪切和面内电磁载荷作用下的磁电弹性响应。在此基础上，采用广义自洽法结合复变量法，得到了多铁纳米复合材料有效MEE模量的解析解。通过与已有的简化问题解析解的比较，验证了考虑纳米界面应力和不完全界面效应的解析解的正确性。对不同类型的复合材料进行了数值分析，详细讨论了纳米界面应力、不完善界面参数和体积分数对MEE有效模量六分量的影响。所提出的有效模量理论估计对多铁性纳米复合材料的设计和优化具有一定的理论价值。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Acta Mechanica 物理-力学

CiteScore

4.30

自引率

14.80%

发文量

292

审稿时长

6.9 months

期刊介绍： Since 1965, the international journal Acta Mechanica has been among the leading journals in the field of theoretical and applied mechanics. In addition to the classical fields such as elasticity, plasticity, vibrations, rigid body dynamics, hydrodynamics, and gasdynamics, it also gives special attention to recently developed areas such as non-Newtonian fluid dynamics, micro/nano mechanics, smart materials and structures, and issues at the interface of mechanics and materials. The journal further publishes papers in such related fields as rheology, thermodynamics, and electromagnetic interactions with fluids and solids. In addition, articles in applied mathematics dealing with significant mechanics problems are also welcome.