Rémi Cornaggia
Maître de conférences, Institut d'Alembert, UFR d'ingénierie, Sorbonne Université.
96%
Libre accès
26
Documents
Identifiants chercheurs
- remi-cornaggia
- 0000-0003-1410-9800
- IdRef : 203573633
Site web
- http://www.dalembert.upmc.fr/home/cornaggia/
Présentation
I am now (from 2020) Maître de conférences (assistant professor) at Sorbonne Université, teaching in the UFR d'ingénierie (engineering department) and conducting my research in team MISES of Institut Jean le Rond d'Alembert. I am interested in the modelling and simulation of acoustic and elastic waves, and to the homogenization and optimization of architected materials and composites.
I have been working mainly on inverse scattering problems, vibrations of heterogeneous beams, and homogenisation and optimisation of periodic materials to enhance dispersive effects. My favourite mathematical tools are topological derivatives of various cost functionnals or quantities of interest, volumic integral equations to reformulate scattering problems, and the two-scale homogenisation method to address periodic media. For numerics, I mainly use finite elements, boundary elements, and FFT-based methods for numerical homogenisation.
_**Short CV (to provide some context to the list of publications):**_
2020 - present : Maître de conférences (assistant professor), Institut d'Alembert, Sorbonne Université, Paris, France
2019-2020 : postdoctoral researcher, Inovsys and LMA, on the modelling of thermo-viscoleastic composites for fused deposition processes.
2018-2019 : postdoctoral researcher, LMA (Laboratoire de mécanique et d'acoustique), Marseille, France. Fellowship granted by the Labex *Mécanique et complexité* for a research subject proposed by Bruno Lombard and Cédric Bellis, on the homogenization and topological optimization of microstructured media and interfaces.
2016-2018 : postdoctoral researcher, teams *Mathematical modeling for mechanics* and *Numerical Analysis* of IRMAR (University of Rennes-1, France), thanks to a fellowship granted by the *Centre Henri Lebesgue* for a research project with Loïc Le Marrec, Éric Darrigrand and Fabrice Mahé. We worked on enriched finite element methods to simulate the vibrations of heterogeneous beams.
2016 : PhD in Applied mathematics, University Paris-Saclay and PhD in Civil Engineering, University of Minnesota (joint PhD program)
Thesis entitled *Development and use of high-order asymptotics to solve inverse scattering problems*, prepared in teams POEMS (Applied maths department, ENSTA Paris) and in the Department of Civil, Environmental and Geo-Engineering of the UoM, and supervised by Marc Bonnet and Bojan B. Guzina.
Publications
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Homogenization for transient waves in 1D periodic media: dispersion, interfaces and point sourcesWAVES 2022, 2022, Palaiseau (France), France
Communication dans un congrès
hal-03945622v1
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ESTIMATING THERMOMECHANICAL RESIDUAL STRESSES IN FDM 3D PRINTED COMPOSITE PARTSInternational Congress of Theoretical and Applied Mechanics, Aug 2021, Milano, Italy
Communication dans un congrès
hal-03454777v1
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Mean-Field Approximations in Effective Thermo-viscoelastic Behavior for Composite Parts Obtained via Fused Deposition Modeling TechnologyInternational Conference of Numerical Analysis and Applied Mathematics, Sep 2020, RHODES, Greece
Communication dans un congrès
hal-03454742v1
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Estimation du comportement thermo-viscoélastique effectif des pièces composites obtenues par impression 3D-FDMFabrication Additive des Composites (FabAddComp), AMAC, Journées Scientifiques et Techniques, Oct 2020, Lorient, France
Communication dans un congrès
hal-03454764v1
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Modèles de milieux continus généralisés et conditions aux limites obtenus par homogénéisation d’ordre deux pour la propagation d’ondes en milieux périodiques 1DCongrès SMAI 2019 - 9ème Biennale des mathématiques appliquées et industrielles, May 2019, Guidel Plage, France
Communication dans un congrès
hal-02269817v1
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Topological optimization of periodic materials to enhance anisotropic dispersive effectsWAVES 2019 - 14th International Conference on Mathematical and Numerical Aspects of Wave Propagation, Aug 2019, Vienna, Austria
Communication dans un congrès
hal-02269821v1
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Enriched finite elements for high-frequency vibrations of geometrically heterogeneous bars and Timoshenko beamsCongrès National d'Analyse Numérique 2018, May 2018, Cap d'Agde, France
Communication dans un congrès
hal-01835428v1
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Exponential approximation and enriched FEM for rods and Timoshenko beams8e Biennale Française des Mathématiques Appliquées et Industrielles (SMAI 2017), Jun 2017, Ronce-les-Bains, France
Communication dans un congrès
hal-01835865v1
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Topological derivatives of leading-and second-order homogenized coefficients in bi-periodic mediaWAVES 2017 - 13th International Conference on Mathematical and Numerical Aspects of Wave Propagation, May 2017, Minneapolis, United States
Communication dans un congrès
hal-02065548v1
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Higher-order expansion of misfit functional for defect identification in elastic solidsWAVES 2015 The 12th International Conference on Mathematical and Numerical Aspects of Wave Propagation, Jul 2015, Karlsruhe, Germany
Communication dans un congrès
hal-01388731v1
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Topological sensitivity-based analysis and optimization of microstructured interfaces2024
Pré-publication, Document de travail
hal-04180360v2
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On the development and use of higher-order asymptotics for solving inverse scattering problems.Numerical Analysis [math.NA]. Université Paris Saclay (COmUE); University of Minnesota, 2016. English. ⟨NNT : 2016SACLY012⟩
Thèse
tel-01573831v1
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Development and use of higher-order asymptotics to solve inverse scattering problemsModeling and Simulation. Université Paris Saclay, 2016. English. ⟨NNT : ⟩
Thèse
tel-01395525v2
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Homogenisation for waves in 1D periodic media: Effective models, boundary and transmission correctorsDoctoral. C2305: Wave Motion in Heterogeneous Media: Analysis, Modeling and Design, CISM, Udine, Italy. 2023
Cours
hal-04186509v1
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Topological optimization of microstructures in 2DDoctoral. C2305 : Wave Motion in Heterogeneous Media: Analysis, Modeling and Design, CISM, Udine, Italy. 2023
Cours
hal-04186515v1
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