Optimal design and parameter estimation of frequency dependent viscoelastic laminated sandwich composite plates

Araújo, Aurélio L.; Soares, Carlos A. Mota; Herskovits, José

doi:10.1016/j.compstruct.2009.07.006

Cited by 76 publications

(35 citation statements)

References 19 publications

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“…However, this model only allows for isotropic materials, and does not account for composite laminated elastic face layers, as does Trindade et al [12] for hybrid active-passive beams. Hence, the authors have developed a mixed hybrid active-passive sandwich plate finite element model [14] for optimal design applications [15] and also identification of viscoelastic material parameters [16]. In this model, the viscoelastic core layer is modelled according to a higher order shear deformation theory, adjacent elastic and piezoelectric layers are modelled using the first order shear deformation theory, and all materials are considered to be orthotropic, with elastic layers being formulated as laminated composite plies.…”

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confidence: 99%

A Viscoelastic Sandwich Finite Element Model for the Analysis of Passive, Active and Hybrid Structures

Araújo

Soares

2010

Appl Compos Mater

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In this paper we present a finite element model for the analysis of active sandwich laminated plates with a viscoelastic core and laminated anisotropic face layers, as well as piezoelectric sensor and actuator layers. The model is formulated using a mixed layerwise approach, by considering a higher order shear deformation theory (HSDT) to represent the displacement field of the viscoelastic core and a first order shear deformation theory (FSDT) for the displacement field of the adjacent laminated anisotropic face layers and exterior piezoelectric layers. The dynamic problem is solved in the frequency domain with viscoelastic frequency dependent material properties for the core. Control laws are also implemented for the piezoelectric sensors and actuators. The model behaviour in dynamics is assessed with the few solutions found in the literature, including experimental data, and a laminated composite active sandwich application is proposed. In this numerical application, velocity feedback control law is implemented for active control, using co-located piezoelectric patch sensors and actuators.

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confidence: 99%

A Viscoelastic Sandwich Finite Element Model for the Analysis of Passive, Active and Hybrid Structures

Araújo

Soares

2010

Appl Compos Mater

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“…Natural frequencies and loss factors of rectangular viscoelastic sandwich plates in thermal environment were studied by Pradeep and Ganesan [42]. Vibration of laminated plates with frequency-dependent viscoelastic cores was studied by Araújo et al [43], using the global plate theories.…”

Section: Introductionmentioning

confidence: 99%

A double-superposition global–local theory for vibration and dynamic buckling analyses of viscoelastic composite/sandwich plates: a complex modulus approach

Shariyat

2010

Arch Appl Mech

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A higher-order global-local theory is proposed based on the double-superposition concept for free vibration and dynamic buckling analyses of viscoelastic composite/sandwich plates subjected to thermomechanical loads. In contrast to all theories proposed so far for analysis of the viscoelastic plates, the continuity conditions of the transverse shear and normal stresses at the layer interfaces and the nonzero traction conditions at the top and bottom surfaces of the sandwich plates are satisfied. Another novelty is that these conditions may be satisfied for viscoelastic plates with temperature-dependent material properties and nonlinear behaviors subjected to thermomechanical loads. Furthermore, transverse flexibility is also taken into account. Some dynamic buckling/wrinkling analyses of the viscoelastic plates are performed in the present paper, for the first time. Comparisons made between results of the paper and results reported by well-known references confirm the accuracy and the efficiency of the proposed theory and the relevant solution algorithm.

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“…A full layerwise shell finite element considering frequency dependent material properties was proposed by Oh et al [19] for cylindrical laminates with viscoelastic layer. Araujo et al [20] presented a finite element model for composite laminates with frequency dependent viscoelastic core using mixed layerwise approach, by considering a high order shear deformation theory to represent the displacement field of viscoelastic layer and a first order shear deformation theory for the displacement files of adjacent laminated face layers. Ferreira et al [21] presented a layerwise finite element model based on Carrera's Unified Formulation for the analysis of composite laminated plates with a viscoelastic core.…”

Section: Introductionmentioning

confidence: 99%

“…Some researchers formulate this design problem as a single-objective optimization problem. Araújo et al [20,23] conducted a single objective constrained optimization for the maximization of modal loss factor of viscoelastic laminated composite structures, using a gradient based algorithm and mixed layerwise finite element model. Montemurro et al [24] presented a genetic algorithm based optimization technique for the design of damping properties of hybrid elastomer/composite laminates.…”

Section: Introductionmentioning

confidence: 99%

Mixed integer multi-objective optimization of composite structures with frequency-dependent interleaved viscoelastic damping layers

Hamdaoui

2016

Computers & Structures

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a b s t r a c tThe optimal design of composite structures with frequency-dependent interleaved viscoelastic damping layers is addressed in this paper. The design objective of simultaneously maximizing structural modal damping and frequency and minimizing weight is considered. The design problem is formulated as a mixed integer multi-objective optimization problem and solved by evolutionary algorithm. A layerwise finite element model is used. The Pareto-optimal solutions are obtained for two applications. The results show that the approach is quite useful in integrally designing such kind of composite structures. In particular, it is shown that the inserting position and the material type are two important design parameters.

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Optimal design and parameter estimation of frequency dependent viscoelastic laminated sandwich composite plates

Cited by 76 publications

References 19 publications

A Viscoelastic Sandwich Finite Element Model for the Analysis of Passive, Active and Hybrid Structures

A Viscoelastic Sandwich Finite Element Model for the Analysis of Passive, Active and Hybrid Structures

A double-superposition global–local theory for vibration and dynamic buckling analyses of viscoelastic composite/sandwich plates: a complex modulus approach

Mixed integer multi-objective optimization of composite structures with frequency-dependent interleaved viscoelastic damping layers

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