HUANG X L, ZHANG Y N, WEI N G ,et al.Vibration and buckling of porous composite truncated conical shells reinforced with carbon nanotubes[J].Journal of Henan Polytechnic University(Natural Science) ,2023,42(6):182-188.

doi:10.16186/j.cnki.1673-9787.2022080021

Received:2022/08/12

Revised:2022/11/28

Published:2023/11/25

Vibration and buckling of porous composite truncated conical shells reinforced with carbon nanotubes

HUANG Xiaolin, ZHANG Yanning, WEI Nengguo, LI Liangjie

School of Architecture and Transportation Engineering，Guilin University of Electronic Technology，Guilin 541004，Guangxi，China

Abstract:Based on an improved material property model for porous composites reinforced with carbon nanotubes，the equations of motion were built to study the vibration and buckling problems of the porous shells.Galerkin integrate method was adopted to solve the equations.By using numerical examples，the effects of pores，carbon nanotubes and semi-vertex angles on the frequency and critical buckling load were investigated.The results show that the frequency and critical buckling load are decreased with the rise of pores coefficient.On the contrary，the frequency and critical load can be evidently raised by increasing the amount of carbon nanotubes.Compared with the natural frequency，critical buckling load are more sensitive to the change of pores.Hence，the conclusion can be drawn that carbon nanotubes can significantly increase the strength and rigidity of the composites.Moreover，the effect of pores can not be neglected.

Key words:carbon nanotube;pore;truncated conical shell;free vibration;buckling;galerkin method

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