Comparative analysis of carbon and boron-nitride nanotube reinforcements on the vibration characteristics of magnetostrictive sandwich plates

IF 6.3 2区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES

Composite Structures Pub Date : 2025-03-02 DOI:10.1016/j.compstruct.2025.119029

Zahra Khoddami Maraghi , Ali Ghorbanpour Arani , Omer Civalek

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引用次数: 0

Abstract

This article presents an analysis of the free vibration behavior of a three-layer sandwich plate with a nanocomposite core. The core is reinforced with Carbon Nanotubes (CNTs) and Boron Nitride Nanotubes (BNNTs) to enhance its mechanical properties, which are calculated using a micromechanical approach and rule of mixtures. The top and bottom layers consist of magnetostrictive materials, introducing magneto-mechanical coupling that requires a frequency regulation parameter for accurate vibration analysis. The governing equations for each layer are derived based on third-order shear deformation theory (TSDT) and are formulated using Hamilton’s principle. The differential quadrature method is then employed to solve for the plate’s vibration frequency. Key findings reveal the distinct effects of CNT and BNNT reinforcements and different matrixes on the vibration characteristics of the composite plate, as well as the effectiveness of vibration control parameters in frequency reduction. These insights have potential applications across various fields, notably in maritime and civil engineering, highlighting the practical relevance of this study.

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本文分析了带有纳米复合材料芯材的三层夹层板的自由振动行为。核心采用碳纳米管（CNTs）和氮化硼纳米管（BNTs）进行增强，以提高其机械性能。顶层和底层由磁致伸缩材料组成，引入了磁-机械耦合，需要一个频率调节参数来进行精确的振动分析。每一层的控制方程都是根据三阶剪切变形理论（TSDT）推导出来的，并利用汉密尔顿原理进行表述。然后采用微分正交法求解板的振动频率。主要发现揭示了 CNT 和 BNNT 增强材料以及不同基体对复合板振动特性的不同影响，以及振动控制参数在降低频率方面的有效性。这些见解可能会应用于各个领域，特别是海事和土木工程领域，从而凸显了本研究的实用性。

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

Composite Structures 工程技术-材料科学：复合

CiteScore

12.00

自引率

12.70%

发文量

1246

审稿时长

78 days

期刊介绍： The past few decades have seen outstanding advances in the use of composite materials in structural applications. There can be little doubt that, within engineering circles, composites have revolutionised traditional design concepts and made possible an unparalleled range of new and exciting possibilities as viable materials for construction. Composite Structures, an International Journal, disseminates knowledge between users, manufacturers, designers and researchers involved in structures or structural components manufactured using composite materials. The journal publishes papers which contribute to knowledge in the use of composite materials in engineering structures. Papers deal with design, research and development studies, experimental investigations, theoretical analysis and fabrication techniques relevant to the application of composites in load-bearing components for assemblies, ranging from individual components such as plates and shells to complete composite structures.