Composite laminates with linearly varying fiber angles under static and dynamic loads

• Type: Article in International Conference Proceedings Book
• Date: 2013

Authors

Hamed Akhavan (Author) FEUP; Pedro Ribeiro (Author) FEUP; Marcelo F. S. F. de Moura (Author) FEUP

Conference proceedings International

Title: 54th AIAA/ASME/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference

Indexing

Scopus - 4 Citations

INSPEC

Scientific classification

CORDIS: Technological sciences > Engineering > Mechanical engineering > Vibration engineering

FOS: Engineering and technology > Mechanical engineering

Other information

Authenticus ID: P-00G-GV1

DOI: 10.2514/6.2013-1565

Abstract (EN): In this paper, natural frequencies, large deflections and failure safety factors of variable stiffness composite laminate (VSCL) plates with curvilinear fibers are studied. In each ply of these rectangular VSCLs, the fiber-orientation angle changes linearly with respect to the horizontal coordinate. To carry out the static and dynamic analysis of the laminates, a new p-version finite element, which follows third-order shear deformation theory, is employed. Large deflections are considered, hence, the analysis is in the non-linear regime. To predict the failure onset, Tsai-Wu criterion is used. Taking into account manufacturing restrictions regarding the fiber curvatures, natural frequencies, deflections, and failure safety factors of some VSCL plates are determined. These results are compared with natural frequencies, deflections, and failure safety factors of constant stiffness composite laminate (CSCL) plates. © 2013 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8