Abstract

We use the generalized differential quadrature method (GDQ) and shell theories of different order to study free vibrations of laminated cylinders of oval and elliptic cross-sections. In the GDQ method partial derivatives of a function at a point are expressed as weighted sums of values of the function at several neighboring points. Thus, strong forms of equations of motion are analyzed. It is found that the computed frequencies rapidly converge with an increase in the number of grid points along the oval or elliptic circumference defining the cross-section of the mid-surface of the cylinder. For a clamped-free elliptic cylinder the converged frequencies match well with the corresponding experimental ones available in the literature. Furthermore, the lowest ten frequencies computed with either an equivalent single layer theory or a layer wise theory of first order and using shear correction factor are accurate.

Autore Pugliese

• Dimitri Rossana

Tutti gli autori

• Tornabene F. , Fantuzzi N. , Bacciocchi M. , Dimitri R.

Titolo volume/Rivista

THIN-WALLED STRUCTURES

Anno di pubblicazione

2015

ISSN

0263-8231

ISBN

Non Disponibile

Numero di citazioni Wos

43

Ultimo Aggiornamento Citazioni

28/04/2018

Numero di citazioni Scopus

46

Ultimo Aggiornamento Citazioni

28/04/2018

Settori ERC

Non Disponibile

Codici ASJC

Non Disponibile