Multiobjective optimization of constrained layer damping treatments in composite plate structures

The optimal design of laminated composite panels with constrained layer damping (CLD) treatments is addressed in this article. The objectives are simultaneously to minimize weight and maximize modal damping. The design variables are the number and position of CLD patch treatments on the surface of t...

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Bibliographic Details
Published in:Mechanics of advanced materials and structures 2017-04, Vol.24 (5), p.427-436
Main Authors: Madeira, J. F. A., Araújo, A. L., Mota Soares, C. M.
Format: Article
Language:English
Subjects:
Composite structures
Constrained Layer Damping
Damping
Derivatives
Finite element method
laminated composites
Laminates
Mathematical models
Modal damping
multiobjective optimization
Multiple objective analysis
Optimization
Panels
Pareto optimum
Plates (structural members)
Solvers
viscoelastic material
Viscoelasticity
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Description
Summary:The optimal design of laminated composite panels with constrained layer damping (CLD) treatments is addressed in this article. The objectives are simultaneously to minimize weight and maximize modal damping. The design variables are the number and position of CLD patch treatments on the surface of the laminated plate. The problem is solved using Direct MultiSearch solver, which does not use any derivatives of the objective functions. A finite element model for sandwich plates with viscoelastic core and laminated face layers is used. Trade-off Pareto optimal fronts and the respective treatment configurations are obtained and the results are analyzed and discussed.
ISSN:1537-6494
1537-6532
DOI:10.1080/15376494.2016.1190427