A general magneto-electro-elastic 3D FE model for free vibration and dynamic responses of multiphase composites

IF 5.7 1区工程技术 Q1 ENGINEERING, CIVIL

Thin-Walled Structures Pub Date : 2025-03-26 DOI:10.1016/j.tws.2025.113242

Zheng Gong , Yinxiao Zhang , Chunlin Du , Ernian Pan , Chao Zhang

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引用次数: 0

Abstract

The fully coupled magneto-electro-elastic (MEE) properties of MEE composites complicate the prediction of their behavior in practical applications, particularly for three-dimensional (3D) vibration and dynamic responses. This paper introduces a generalized 3D MEE finite element model developed via secondary development in COMSOL. It allows users to obtain accurate results without finite element programming skills, significantly simplifying the complexity in the modeling of MEE materials. The accuracy of the proposed model in predicting natural frequency, modes, dynamic response, and stress wave propagation is first validated against exact solutions. Then, the model is employed to investigate the impacts of functional gradients, structural dimensions, perforated plate, damping, and pre-stress on the vibration characteristics and dynamic behavior of MEE composites. An empirical formula is further developed to precisely predict the fundamental frequency in MEE sandwich plates with varying stacking sequences and dimensions. For MEE sandwiches composed of piezoelectric (BaTiO₃) and magnetostrictive (CoFe₂O₄) materials with different stacking sequences, interesting novel features are observed, including the effect of piezomagnetic/piezoelectric stiffening, the influence of the geometry on the vibration and propagation of stress waves in the MEE structure. These findings offer valuable insights for the design of high-performance multiphase composites.

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来源期刊

Thin-Walled Structures 工程技术-工程：土木

CiteScore

9.60

自引率

20.30%

发文量

801

审稿时长

66 days

期刊介绍： Thin-walled structures comprises an important and growing proportion of engineering construction with areas of application becoming increasingly diverse, ranging from aircraft, bridges, ships and oil rigs to storage vessels, industrial buildings and warehouses. Many factors, including cost and weight economy, new materials and processes and the growth of powerful methods of analysis have contributed to this growth, and led to the need for a journal which concentrates specifically on structures in which problems arise due to the thinness of the walls. This field includes cold– formed sections, plate and shell structures, reinforced plastics structures and aluminium structures, and is of importance in many branches of engineering. The primary criterion for consideration of papers in Thin–Walled Structures is that they must be concerned with thin–walled structures or the basic problems inherent in thin–walled structures. Provided this criterion is satisfied no restriction is placed on the type of construction, material or field of application. Papers on theory, experiment, design, etc., are published and it is expected that many papers will contain aspects of all three.