Free vibration analysis of conical shells reinforced with agglomerated Carbon Nanotubes

Abstract

In the present work, a free vibration analysis of Carbon Nanotube-Reinforced Composite (CNTRC) conical shells is performed considering the agglomeration effect of Carbon Nanotubes (CNTs). The material properties of the nanocomposite conical shell are estimated employing the Eshelby-Mori-Tanaka approach based on an equivalent fiber assumption. The numerical results are compared with the experimental data available from the literature. The equations of motion are derived based on the First-order Shear Deformation Theory (FSDT). The Generalized Differential Quadrature (GDQ) technique is originally implemented to solve the governing equations of the problem and to obtain the natural frequencies of the structures, since it has proven to be an efficient and accurate numerical tool. A parametric study is herein developed to investigate the influence of some characteristic parameters on the vibrational behavior of the CNTRC conical shell, e.g. the CNTs volume fraction and agglomeration, or the boundary conditions and geometrical parameters like the thickness to radius ratio. Based on results, it is found that agglomeration of CNTs plays a significant role on the natural frequency of the structure.


Autore Pugliese

Tutti gli autori

  • Kamarian S. , Salim M. , Dimitri R. , Tornabene F.

Titolo volume/Rivista

INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES


Anno di pubblicazione

2016

ISSN

0020-7403

ISBN

Non Disponibile


Numero di citazioni Wos

34

Ultimo Aggiornamento Citazioni

28/04/2018


Numero di citazioni Scopus

38

Ultimo Aggiornamento Citazioni

28/04/2018


Settori ERC

Non Disponibile

Codici ASJC

Non Disponibile