Chaotic and nonlinear dynamic response of hybrid nanocomposite graphene origami-enabled auxetic cylindrical shell

IF 2.3 3区工程技术 Q2 MECHANICS

Acta Mechanica Pub Date : 2025-04-28 DOI:10.1007/s00707-025-04320-x

Farzad Ebrahimi, Mohammad Mahinzare, Abbas Rastgoo, Seyede Zahra Mirsadoghi

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引用次数: 0

Abstract

This research offers a novel mechanical system made up of a cylinder-shaped shell with a unique structure, a hybrid nanocomposite sandwich cylindrical shell with an auxetic nanocomposite origami core. A hybrid sandwich shell exposed to preloading in the axial direction and an external excitation force. Auxetic origami shell dynamics are investigated with the Galerkin’s approach and the Runge–Kutta technique; the equations are the result of Donnell’s modified shell theory. The chaotic and nonlinear dynamic response of the hybrid auxetic sandwich shells was observed. Numerous parametric examples are provided and explored to further illustrate the effect of these factors on the three-layer spherical shell’s oscillation. The suggested approach is compared to previous efforts in the literature to ensure the correctness and precision of the numerical findings. This article aims to further investigate the performance and behavior of these shells reinforced with auxetic cores, considering the effect of porosity by examining vibrations, nonlinear dynamic analysis, and the effect of the chaos phenomenon, so this approach will enable us to utilize these enhanced structures in practical and industrial applications while improving these characteristics.

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杂化纳米复合材料石墨烯折纸辅助圆柱壳的混沌非线性动力响应

本研究提出了一种由具有独特结构的圆柱形壳体组成的新型机械系统，即混合纳米复合材料夹层圆柱形壳体与辅助纳米复合材料折纸芯。混合夹层壳在轴向和外部激励力的作用下受到预压。利用伽辽金方法和龙格-库塔技术研究了补体折纸壳动力学；这些方程是Donnell修正壳理论的结果。观察了混合动力夹层壳的混沌非线性动力响应。为了进一步说明这些因素对三层球壳振动的影响，给出了大量的参数化实例。建议的方法是比较以前的努力在文献中，以确保数值结果的正确性和精度。本文旨在通过振动检测、非线性动力分析和混沌现象的影响，进一步研究这些增强壳的性能和行为，从而使我们能够在实际和工业应用中利用这些增强结构，同时改善这些特性。

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

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.