Minimum-weight design of compressively loaded composite plates and stiffened panels for postbuckling strength by Genetic Algorithm

Cited 0 time in webofscience Cited 0 time in scopus
  • Hit : 946
  • Download : 2177
The minimum-weight design of compressively loaded composite plates and composite stiffened panels under constrained Postbuckling strength is addressed herein. A nonlinear finite element code, COSAP (COmposite Structural Analysis Program) was applied to analyze the buckling and postbuckling behaviour. As an optimization technique, a modified Genetic Algorithm was used to find the optimum points. The parallel computing scheme was implemented with MPI (Message Passing Interface) library and realized in a parallel-computing supercomputer and a pc cluster. The optimal design was performed with two chosen examples: a composite plate and a composite stiffened panel. The design variables were the number of plies and the ply angle in each ply. In case of the stiffened panels, the size and the location of the stiffeners were also considered as the design variables. The objective function was defined as the product of the nondimensional weight and the strength. The optimization results showed better performances than conventional designs.
Publisher
Elsevier
Issue Date
2005
Keywords

weight-minimization; optimal design; genetic algorithm; composite; postbuckling

Citation

Composite structures, v.69, no.2, pp.239-246

ISSN
0263-8223
URI
http://hdl.handle.net/10203/1124
Appears in Collection
AE-Journal Papers(저널논문)
Files in This Item
paper_figures.pdf(1.09 MB)Download
paper_text.pdf(175.79 kB)Download

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0