非局部弹性和相位滞后对霍尔电流复合圆柱体中磁热弹性波的影响

IF 1.5 Q3 MECHANICS
R. Selvamani, S. Mahesh, F. Ebrahimi
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引用次数: 0

摘要

本文采用线性弹性理论的非局部形式,研究了非局部尺度值和两相滞后对广义磁热弹性多层LEMV /CFRP(碳纤维增强聚合物)复合材料筒体自由振动的影响。在纵轴上建立运动控制方程,利用变量分离模型将控制方程转化为微分方程组。为了进行频率方程的振动分析,在内部、外部和界面边界处采用了无应力边界条件。给出了频移、固有频率和热弹性阻尼的数值计算结果的图形表示。特别注意考察了非局部参数对上述量的影响。结果表明,非局部尺度和相位滞后参数显著改变了复合材料圆柱的振动特性。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effect of Nonlocal Elasticity and Phase Lags on the Magneto Thermoelastic Waves in a Composite Cylinder with Hall Current
In this study, the effect of nonlocal scale value and two phases lags on the free vibration of generalized magneto thermoelastic multilayered LEMV (Linear Elastic Material with Voids)/CFRP (Carbon Fiber Reinforced Polymer) composite cylinder is studied using nonlocal form of linear theory of elasticity. The governing equation of motion is established in longitudinal axis and variable separation model is used to transform the governing equations into a system of differential equations. To investigate vibration analysis from frequency equations, the stress free boundary conditions are adopted at the inner, outer and interface boundaries. The graphical representation of the numerically calculated results for frequency shift, natural frequency, and thermoelastic damping is presented. A special care has been taken to inspect the effect of nonlocal parameter on the aforementioned quantities. The results suggest that the nonlocal scale and the phase lag parameters alter the vibration characteristics of composite cylinders significantly.
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来源期刊
CiteScore
1.70
自引率
8.30%
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0
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