Analysis of composite plates using a layerwise theory and a differential quadrature finite element method

• Type: Article in International Scientific Journal
• Date: 2016

Authors

Liu, B (Author) Other; Ferreira, AJM (Author) FEUP; Xing, YF (Author) Other; Neves, AMA (Author) FEUP

Journal

Title: Composite Structures

Vol. 156

Pages: 393-398

ISSN: 0263-8223

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 42 Citations

Scopus - 46 Citations

Other information

Authenticus ID: P-00M-77X

DOI: 10.1016/j.compstruct.2015.07.101

Abstract (EN): A layerwise shear deformation theory for composite laminated plates is discretized using a differential quadrature finite element method (DQFEM). The DQFEM is a weak-form differential quadrature method that can provide highly accurate results using only a few sampling points. The layerwise theory proposed by Ferreira is based on an expansion of Mindlin's first-order shear deformation theory in each layer and results for a laminated plate with three layers were presented as example in the original paper. This work generalized the layerwise theory to plates with any number of layers. The combination of the DQFEM with Ferreira's layerwise theory allows a very accurate prediction of the field variables. Laminated composite and sandwich plates were analyzed. The DQFEM solutions were compared with various models in literature and especially showed very good agreements with the exact solutions in literature that was based on a similar layerwise theory. The analysis of composite plates based on Ferreira's layerwise theory indicates that the DQFEM is an effective method for high accuracy analysis of large-scale problems.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6