Free vibration of functionally graded SWNT reinforced aluminum alloy beam

Journal of Vibroengineering

Abdellatif Selmi¹  Awni Bisharat² 

[1] Prince Sattam Bin Abdulaziz University, College of Engineering, Civil Engineering Department,B.P. 655, Al-Kharj 11942, Saudi Arabia;Prince Sattam Bin Abdulaziz University, College of Engineering, Mechanical Engineering Department, B.P. 655, Al-Kharj 11942, Saudi Arabia;

关键词: aluminum alloy;    SWNT;    functionally graded beam;    free vibration;   

DOI  :  10.21595/jve.2018.19445

来源: DOAJ

【 摘 要 】

Aluminum alloy (Al-alloy) reinforced with Single walled carbon nanotubes (SWNT), which represents an important industrial application, is studied. Different beam theories (BT) are applied to investigate functionally graded (FG) beams made of Al-alloy reinforced with randomly oriented, straight and long SWNT. The Rayleigh-Ritz method is used to estimate the beam frequencies. First, the Mori-Tanak (M-T) homogenization technique is used to predict the effective material properties of the beams. Second, results from BT are verified against finite element (FE) simulations. Next, a parametric study is carried out in order to investigate the influence of SWNT volume fractions, SWNT distributions and beam edge-to-thickness ratios on the vibration behavior of the FG beam. Results demonstrate the important effect of the studied parameters on the dynamic behavior of the FG SWNT reinforced Al-alloy composite beams.

【 授权许可】

Unknown