Multiobjective design of viscoelastic laminated composite sandwich panels

Madeira, J.F.A.; Araújo, Aurélio L.; Ferreira, A.J.M.

doi:10.1016/j.compositesb.2015.03.025

Cited by 69 publications

(26 citation statements)

References 22 publications

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“…Two objectives were considered: (i) to maximize the local-global buckling strength and (ii) to maximize the distortional buckling strength. This bi-objective optimization problem was solved using the Direct MultiSearch (DMS [9,10]) method, which does not use any derivatives of the objective functions. Like in previous studies available in the literature, the design variables of the problem were the angles of orientation of cross-section wall elements.…”

Section: Discussionmentioning

confidence: 99%

“…It is based on a novel technique developed by extending direct search from single to multiobjective optimization. DMS has recently been used for the design of a viscoelastic laminated sandwich composite panels [10], thus maximizing modal damping and minimum mass and material cost, by choosing the number of layers, the material of the layers, as well as the respective thickness and orientation. Very recently, Yin et al [11] also used multiobjective optimization to maximize the specific energy absorption and minimize the maximum impact force of foam-filled multi-cell thin-walled structure using nonlinear finite element method and multiobjective particle swarm optimization algorithm.…”

Section: Introductionmentioning

confidence: 99%

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Multiobjective optimization of cold-formed steel columns

Madeira

Dias

Silvestre

2015

Thin-Walled Structures

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Multiobjective optimization of cold-formed steel columns

Madeira

Dias

Silvestre

2015

Thin-Walled Structures

Self Cite

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“…For the core viscoelastic material and assuming that Young's modulus and Poisson's ratio depend on the frequency [8,24] one can write them according to * = (1 + ) ,…”

Section: Constitutive Relationsmentioning

confidence: 99%

Dynamic Response of Soft Core Sandwich Beams with Metal-Graphene Nanocomposite Skins

Loja

2017

Shock and Vibration

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Sandwich structures are able to provide enhanced strength, stiffness, and lightweight characteristics, thus contributing to an improved overall structural response. To this sandwich configuration one may associate through-thickness graded core material properties and homogeneous or graded properties nanocomposite skins. These tailor-made possibilities may provide alternative design solutions to specific problem requisites. This work aims to address these possibilities, considering to this purpose a package of three beam layerwise models based on different shear deformation theories, implemented through Kriging-based finite elements. The viscoelastic behaviour of the sandwich core is modelled using the complex method and the dynamic problem is solved in the frequency domain. A set of case studies illustrates the performance of the models.

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“…Many optimization techniques such as Genetic Algorithm 14 , Moving Asymptotes method 15 , Topology Optimization method 16 , modal strain energy method 17 and recently Double Shear Lap-Joint-configuration 13,18 were successfully adopted to optimize the location and dimensions of CLD, in order to maximize the structural damping while minimizing additional mass. However, the introducing of the damping layer can reduce the stiffness of the sandwich structures 11 .…”

Section: Introductionmentioning

confidence: 99%

Vibration and damping characteristics of 3D printed Kagome lattice with viscoelastic material filling

Wang

Shang

et al. 2018

Sci Rep

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Constrained layer dampers (CLD) are in widespread use for passive vibration damping, in applications including aerospace structures. However, the introducing of the damping layer can reduce the stiffness of the sandwich structures. A viscoelastic material filling (VMF) is chosen to balance structural and vibrational performance of lattice truss in this work. The recently brought forward 3D Kagome truss with face sheet was manufactured by selective laser sintering technology and the thermosetting polyurethane was chosen as the viscoelastic filling material. A novel complex modal analysis finite element method for Hybrid composite lattice truss sandwich is introduced in this paper. Dynamic analysis experiment results show that the VMF method is found to be effective in reducing the vibration amplitude and it has the potential for band-gap design. The VMF method can provide high stiffness at low mass and considerable vibrational performance at low cost and it can be considered as a general vibration design method in lattice truss manufacture.

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Multiobjective design of viscoelastic laminated composite sandwich panels

Cited by 69 publications

References 22 publications

Multiobjective optimization of cold-formed steel columns

Multiobjective optimization of cold-formed steel columns

Dynamic Response of Soft Core Sandwich Beams with Metal-Graphene Nanocomposite Skins

Vibration and damping characteristics of 3D printed Kagome lattice with viscoelastic material filling

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