Geometrically Linear Modeling and Analysis of Functionally Graded Carbon Nanotube-reinforced Composite Rectangular Plates

doi:10.3901/JME.2018.16.093

Abstract

Abstract: Carbon nanotube (CNT) has a wide range of applications because of high elastic modulus, low density and fiber structure. Due to the complexity of structural composition, it has brought difficulties to the modeling. Based on the Reissner-Mindlin hypothesis, the linear finite element analysis of the carbon nanotube-reinforced gradient composite plates is established. The effects of distribution form, volume ratio of the CNT reinforcement and geometric parameters of the plates on composite structure are verified respectively. The accuracy of the model is verified by the experiment of the plate structure under simple support and uniform load. The geometrical linear calculation and simulation of CNT-strengthened functionally graded plates are carried out using this model. The results show that the deformation of FGM plate decreases with the increase of the volume fraction of CNT, among different distribution forms, deformation of X-shaped functional distribution form is the smallest, and that of O-shaped functional distribution form is the largest, and that of uniformed distribution form and V-shaped distribution form are in the middle; when the side to thickness ratio is less than 50, FGM plate deformation tends to be stable and small.

Key words: carbon nanotubes, functionally graded materials, plate and shell structure

CLC Number:

O343

XUE Ting, QIN Xiansheng, ZHANG Shunqi, LI Pengcheng, ZHANG Shuyang. Geometrically Linear Modeling and Analysis of Functionally Graded Carbon Nanotube-reinforced Composite Rectangular Plates[J]. Journal of Mechanical Engineering, 2018, 54(16): 93-100.

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