A mixed finite element and improved genetic algorithm method for maximizing buckling load of stiffened laminated composite plates

Vosoughi A. R., Darabi A., Anjabin N., Topal U.

AEROSPACE SCIENCE AND TECHNOLOGY, vol.70, pp.378-387, 2017 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 70
  • Publication Date: 2017
  • Doi Number: 10.1016/j.ast.2017.08.022
  • Journal Name: AEROSPACE SCIENCE AND TECHNOLOGY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.378-387
  • Keywords: Improved GA, Hybrid optimization technique, Maximum buckling load, Stiffened laminated composite plates, MAXIMUM FUNDAMENTAL-FREQUENCY, OPTIMIZATION, PANELS, TEMPERATURE, VIBRATION, BEHAVIOR, BEAMS
  • Karadeniz Technical University Affiliated: Yes

Abstract

As a first attempt, finite element (FE), genetic algorithm (GA) and particle swarm optimization (PSO) methods are mixed to maximize buckling load of stiffened laminated composite plate via finding optimum fibers orientation of the plate. The FE method is used to solve the higher-order shear deformation based equations of the plate. To improve the performance of genetic algorithms for solving the problem, the particle swarm optimization technique is added as an operator of the GA. Accuracy, convergence and applicability of the proposed approach are shown. Effects of the dimensions of the plate, the cross section shapes of the stiffener(s), number of layers of the plate and boundary conditions on the optimum results are investigated. (C) 2017 Elsevier Masson SAS. All rights reserved.