材料科学
振动
洛伦兹力
屈曲
温度梯度
机械
刚度
弹性(物理)
热的
软化
非线性系统
不稳定性
磁场
复合材料
结构工程
物理
声学
工程类
气象学
量子力学
作者
Ramazan Özmen,Recep Kılıç,İsmail Esen
标识
DOI:10.1080/15376494.2022.2124000
摘要
This study investigates the free vibration and thermal buckling behavior of functionally graded porous nanobeams in magnetic and thermal fields using high-order trigonometric shear stress and nonlocal strain gradient elasticity theories. The results demonstrated the effects of nonlocal differential and strain gradient elasticities on softening and stiffness enhancements, respectively. Additionally, the Lorentz force induced by the magnetic field makes nanobeam’s vibratory motion difficult, causing the natural frequencies to increase. This situation can contribute to the dynamic stability of nanobeams exposed to the nonlinear temperature distribution. This study’s results will assist in designing and implementing micro/nanoelectromechanical systems.
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