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首页> 外文期刊>International journal of non-linear mechanics >Vibration of thermally postbuckled carbon nanotube-reinforced composite beams resting on elastic foundations
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Vibration of thermally postbuckled carbon nanotube-reinforced composite beams resting on elastic foundations

机译：放置在弹性基础上的热后屈曲碳纳米管增强复合梁的振动

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摘要

This paper investigates the small- and large-amplitude vibrations of thermally postbuclded carbon nanotube-reinforced composite (CNTRC) beams resting on elastic foundations. For the CNTRC beams, uniformly distributed (UD) and functionally graded (FG) reinforcements are considered where the temperature-dependent material properties of CNRTC beams are assumed to be graded in the thickness direction and estimated through a micromechanical model. The motion equations are derived based on a higher order shear deformation beam theory with including the beam-foundation interaction. The initial deflection caused by thermal postbuckling is also included. The numerical illustrations concern small- and large-amplitude vibration characteristics of thermally postbuckled CNTRC beams under uniform temperature field. The effects of carbon nanotube (CNT) volume fraction and distribution patterns
机译：本文研究了基于弹性基础的热后鼓泡碳纳米管增强复合材料（CNTRC）梁的小振幅和大振幅振动。对于CNTRC梁，考虑了均匀分布（UD）和功能梯度（FG）的增强材料，其中CNRTC梁的温度相关材料特性假定在厚度方向上是梯度的，并通过微力学模型进行估算。运动方程是基于包括梁-基础相互作用在内的高阶剪切变形梁理论得出的。还包括由热后屈曲引起的初始挠度。数值说明涉及均匀温度场下热后屈曲的CNTRC梁的小振幅和大振幅振动特性。碳纳米管（CNT）的体积分数和分布模式的影响

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