Magnetic field and non-local effects on axial vibration of embedded nanorods reinforced with short fibers

IF 2.9 3区 工程技术 Q2 MECHANICS
Büşra Uzun
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引用次数: 0

Abstract

In this work, an attempt is made for the first time to present the axial vibration of non-local rods made of a polymer matrix reinforced with short fibers under the influence of a magnetic field and an elastic medium. This paper examines the influences of small-scale based on the non-local theory and a transverse magnetic field on free axial vibration of short-fiber-reinforced nanorods embedded in an elastic medium for the first time in the literature and prefers the finite element method. Using the Lorentz magnetic force derived from Maxwell’s relation, the equation of motion for the non-local axial vibration of the short-fiber-reinforced nanorods subjected to the transverse magnetic field and embedded in an elastic medium is constituted. Then, a size-dependent finite element formulation of embedded and magnetically affected short-fiber-reinforced nanorods is posed based on the weighted residual method. The dimensionless frequencies of clamped–clamped and clamped-free embedded short-fiber-reinforced nanorods are calculated by using the finite element method based on various arguments such as mode number, fiber properties, non-local parameter, magnetic parameter, magnetic field strengths’ ratio and elastic medium. The changes in frequencies due to the effects of these arguments are presented with a number of figures and tables and a detailed discussion is carried out.

磁场和非局部效应对短纤维增强纳米棒轴向振动的影响
在这项工作中,首次尝试呈现了由短纤维增强的聚合物基体制成的非局部棒在磁场和弹性介质的影响下的轴向振动。本文首次基于非局部理论研究了小尺度和横向磁场对嵌入弹性介质中的短纤维增强纳米棒自由轴向振动的影响,并采用了有限元方法。利用麦克斯韦关系导出的洛伦兹磁力,建立了嵌入弹性介质中受横向磁场作用的短纤维增强纳米棒非局部轴向振动的运动方程。在此基础上,基于加权残差法,建立了嵌入型和受磁影响的短纤维增强纳米棒的尺寸相关有限元公式。基于模态数、纤维特性、非局部参数、磁场参数、磁场强度比和弹性介质等参数,采用有限元法计算了夹紧-夹紧和无夹紧嵌入式短纤维增强纳米棒的无量纲频率。由于这些参数的影响而引起的频率变化用一些图表和表格提出,并进行了详细的讨论。
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
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.
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