#7252. Effect of CNT volume fractions on nonlinear vibrations of PMMA/CNT composite plates: A multiscale simulation

October 2026publication date
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Engineering
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Abstract:
The volume fraction of the carbon nanotube (CNT) plays a key role in ensuring the performance of the CNT reinforced polymer composite. In this paper, a bottom-up multiscale method is adopted to study the effect of the CNT volume fractions on the nonlinear vibration of the poly (methyl methacrylate) (PMMA)/CNT composite. According to the molecular simulation, the longitudinal, transverse and shear moduli of the PMMA/CNT nanocomposites are found to increase with the increasing CNT volume fractions. The meshless simulation results demonstrate that the natural frequencies of the composite plate increase with the increasing volume fractions, whereas the ratios of the nonlinear to linear frequencies decrease.
Keywords:
CNT volume fraction; Meshless simulation; Molecular dynamics; Nonlinear vibration; PMMA/CNT composite

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