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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Jensen, Jakob Søndergaard
Technical University of Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (19/19 displayed)
- 2019Multiscale molecular dynamics-FE modeling of polymeric nanocomposites reinforced with carbon nanotubes and graphenecitations
- 2018Correlation of mechanical and electrical properties with processing variables in MWCNT reinforced thermoplastic nanocompositescitations
- 2018Correlation of mechanical and electrical properties with processing variables in MWCNT reinforced thermoplastic nanocompositescitations
- 2018Interaction of nanofillers in injection-molded graphene/carbon nanotube reinforced PA66 hybrid nanocompositescitations
- 2018Damping Behavior of Carbon Nanotube Reinforced Nanocomposites: Micromechanical Modeling and Experiments
- 2017Multi-Scale Modeling of the Structural and Vibrational Behavior of Carbon Nanotube Reinforced Polymeric Nanocomposite Plates
- 2017Multi-Scale Modeling of the Structural and Vibrational Behavior of Carbon Nanotube Reinforced Polymeric Nanocomposite Plates
- 2017Influence of Processing Conditions on the Mechanical Behavior of MWCNT Reinforced Thermoplastic Nanocompositescitations
- 2017Influence of Processing Conditions on the Mechanical Behavior of MWCNT Reinforced Thermoplastic Nanocompositescitations
- 2015Topology Optimized Architectures with Programmable Poisson's Ratio over Large Deformationscitations
- 2014Design of materials with prescribed nonlinear propertiescitations
- 2014Topology optimization of periodic microstructures for enhanced dynamic properties of viscoelastic composite materialscitations
- 2014On the realization of the bulk modulus bounds for two-phase viscoelastic compositescitations
- 2012Optimized manufacturable porous materials
- 2012Enhancing the Damping Properties of Viscoelastic Composites by Topology Optimization
- 2011Topology optimization of nonlinear optical devicescitations
- 2011Modelling of Active Semiconductor Photonic Crystal Waveguides and Robust Designs based on Topology Optimization
- 2011Modelling of Active Semiconductor Photonic Crystal Waveguides and Robust Designs based on Topology Optimization
- 2007Topology optimization of acoustic-structure interaction problems using a mixed finite element formulationcitations
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article
Topology optimization of acoustic-structure interaction problems using a mixed finite element formulation
Abstract
The paper presents a gradient-based topology optimization formulation that allows to solve acoustic-structure (vibro-acoustic) interaction problems without explicit boundary interface representation. In acoustic-structure interaction problems, the pressure and displacement fields are governed by Helmholtz equation and the elasticity equation, respectively. Normally, the two separate fields are coupled by surface-coupling integrals, however, such a formulation does not allow for free material re-distribution in connection with topology optimization schemes since the boundaries are not explicitly given during the optimization process. In this paper we circumvent the explicit boundary representation by using a mixed finite element formulation with displacements and pressure as primary variables (a u/p-formulation). The Helmholtz equation is obtained as a special case of the mixed formulation for the elastic shear modulus equating to zero. Hence, by spatial variation of the mass density, shear and bulk moduli we are able to solve the coupled problem by the mixed formulation. Using this modelling approach, the topology optimization procedure is simply implemented as a standard density approach. Several two-dimensional acoustic-structure problems are optimized in order to verify the proposed method.