Multiobjective design of viscoelastic laminated composite sandwich panels

Madeira, JFA; Araújo, A. L.; Mota Soares, C. M.; Mota Soares, C. A.; Ferreira, A. J. M.

http://hdl.handle.net/10400.21/5992

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Abstract(s)

The optimal design of laminated sandwich panels with viscoelastic core is addressed in this paper, with the objective of simultaneously minimizing weight and material cost and maximizing modal damping. The design variables are the number of layers in the laminated sandwich panel, the layer constituent materials and orientation angles and the viscoelastic layer thickness. The problem is solved using the Direct MultiSearch (DMS) solver for multiobjective optimization problems which does not use any derivatives of the objective functions. A finite element model for sandwich plates with transversely compressible viscoelastic core and anisotropic laminated face layers is used. Trade-off Pareto optimal fronts are obtained and the results are analyzed and discussed.

Keywords

Layered structures Vibration Internal friction/damping Computational modelling

URI

http://hdl.handle.net/10400.21/5992

Citation

MADEIRA, J. F. A.; [et al.] - Multiobjective design of viscoelastic laminated composite sandwich panels. Composites Part B-Engineering. ISSN. 1359-8368. Vol. 77 (2015), pp. 391-401