The impacts of variable nonlocal, length-scale factors and surface energy on hygro-thermo-mechanical vibration and buckling behaviors of viscoelastic FGP nanosheet on viscoelastic medium

IF 3.8 2区 工程技术 Q1 ENGINEERING, MECHANICAL
Hong Hieu Le, Van Ke Tran, Nhan Thinh Hoang, Nguyen Ngoc My Huong
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引用次数: 0

Abstract

The main goal of this paper is to present the free vibration and buckling of viscoelastic functionally graded porous (FGP) nanosheet based on nonlocal strain gradient (NSGT) and surface elasticity theories. The nanosheets are placed on a visco-Pasternak medium in a hygro-temperature environment with nonlinear rules. The viscoelastic material characteristics of nanosheets are based on Kelvin’s model. The unique point of this study is to consider the change of nonlocal and length-scale coefficients according to thickness, similar to the laws of the material properties. The Galerkin approach based on the Kirchhoff-love plate theory is applied to determine the natural frequency and critical buckling load of the viscoelastic FGP nanosheet with various boundary conditions. The accuracy of the proposed method is verified through reliable publications. The outcome of this study highlights the significant effects of the nonlocal and length-scale parameters on the vibration and buckling behaviors of viscoelastic FGP nanosheets.

粘弹性 FGP 纳米片在粘弹性介质上的非局部、长度尺度因子和表面能变量对湿热机械振动和屈曲行为的影响
本文的主要目的是基于非局部应变梯度(NSGT)和表面弹性理论,介绍粘弹性功能梯度多孔(FGP)纳米片的自由振动和屈曲。纳米片被置于具有非线性规则的湿温环境中的粘弹性帕斯捷尔纳克介质上。纳米片的粘弹性材料特性基于开尔文模型。这项研究的独特之处在于考虑了非局部系数和长度尺度系数随厚度的变化,这与材料特性的规律相似。基于 Kirchhoff-love 板理论的 Galerkin 方法被应用于确定各种边界条件下粘弹性 FGP 纳米板的固有频率和临界屈曲载荷。通过可靠的出版物验证了所提出方法的准确性。本研究的结果凸显了非局部参数和长度尺度参数对粘弹性 FGP 纳米板振动和屈曲行为的显著影响。
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 Sinica
Acta Mechanica Sinica 物理-工程:机械
CiteScore
5.60
自引率
20.00%
发文量
1807
审稿时长
4 months
期刊介绍: Acta Mechanica Sinica, sponsored by the Chinese Society of Theoretical and Applied Mechanics, promotes scientific exchanges and collaboration among Chinese scientists in China and abroad. It features high quality, original papers in all aspects of mechanics and mechanical sciences. Not only does the journal explore the classical subdivisions of theoretical and applied mechanics such as solid and fluid mechanics, it also explores recently emerging areas such as biomechanics and nanomechanics. In addition, the journal investigates analytical, computational, and experimental progresses in all areas of mechanics. Lastly, it encourages research in interdisciplinary subjects, serving as a bridge between mechanics and other branches of engineering and the sciences. In addition to research papers, Acta Mechanica Sinica publishes reviews, notes, experimental techniques, scientific events, and other special topics of interest. Related subjects » Classical Continuum Physics - Computational Intelligence and Complexity - Mechanics
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