Ludovic CHAMOIN - LMT Cachan

Ludovic CHAMOIN

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   Nom / Last Name  CHAMOIN
   Prénom / First Name Ludovic

   Professeur des Universités - Professor

   Courriel
/ E-mail
ludovic.chamoin[at]lmt.ens-cachan.fr

Contact :

Adresse / address :
L.M.T. Cachan
61 Avenue du Président Wilson
94235 CACHAN Cedex


Tél : (33) 1 47 40 53 46
Fax : (33) 1 47 40 27 85


Responsabilités LMT :

   

2009-: Responsable de l'UTR "Contrôle, Adaptation et Validation des Modèles"
2009-: Membre de la Commission Scientifique du LMT

LMT Responsibilities:

 

2009-: Head of the "Model Control, Adaptation, and Validation" research team
2009-: Member of the Scientific Council of LMT


Activités de recherche :


  • Contrôle des simulations numériques

  • - estimateurs d'erreur globale/locale garantis
    - techniques de reconstruction de champs admissibles
    - adaptation de maillage
    - approches non-intrusives pour l'encadrement efficace et pratique de l'erreur sur des quantités d'intérêt
    - applications diverses (multiéchelle, XFEM, dynamique transitoire, vibrations, analyse isogéométrique, visco-plasticité, contact,...)

  • Réduction de modèle et contrôle de l'erreur de modèle

  • - couplages multiéchelle (atomique / continu, déterministe / stochastique, transport / diffusion,...)
    - bases réduites et séparation de variables (POD,PGD)
    - contrôle des modèles vis-à-vis de quantités d'intérêt (technique de l'adjoint)
    - adaptation de modèle

  • Recalage et validation des modèles

  • - erreur en relation de comportement modifiée
    - validation en temps réel et dialogue essais/calculs (DDDAS)
    - assimilation de données, filtres de Kalman
    - approches multi-fidélité
    - quantification des incertitudes, inférence bayesienne

  • Contrôle optimal

  • - contrôle de systèmes mécaniques en temps réel
    - contrôle garanti avec bornes d'erreur
    - synthèse de contrôle à partir de modèles réduits




Distinctions:
Prix de thèse du CSMA
Médaille Robert J. Melosh
Prix John Argyris (Elsevier)
Conférencier au Collège de France (2014)
Conférencier plénier à ADMOS 2017

Current research interest:

 

  • Control of numerical simulations

  • - guaranteed global/goal-oriented error estimates
    - techniques to construct admissible fields
    - mesh adaptation
    - non-intrusive approaches for effective error bounds on quantities of interest
    - applications: multiscale analysis, XFEM, transient dynamics, vibrations, isogeometric analysis, visco-plasticity, contact,...

  • Model reduction and control of modeling error

  • - multiscale couplings (atomistic / continuum, deterministic / stochastic, transport / diffusion,...)
    - reduced bases and separation of variables (POD, PGD)
    - modeling error control with respect to quantities of interest (adjoint-based)
    - modeling adaptation

  • Model updating and validation

  • - modified constitutive relation error
    - real-time validation and dialog experiments/simulations (DDDAS)
    - data assimilation, Kalman filters
    - multi-fidelity approaches
    - uncertainty quantification, Bayesian inference

  • Optimal control

  • - control of mechanical systems in real-time
    - guaranteed control with error bounds
    - control synthesis using reduced models


    Awards:
    National PhD Award from the French Computational Mechanics Association (CSMA)
    Robert J. Melosh Medal
    John Argyris Award (Elsevier)
    Plenary Speaker at Collège de France (2014)
    Plenary Speaker at ADMOS 2017


    Activités d'enseignement :

       

    1ère année SAPHIRE (ENS Cachan)
    - Mathématiques pour la modélisation et la simulation (cours)

    Master 1 MMS (ENS Cachan, Université Paris-Saclay)
    - Mécanique des milieux continus (cours)
    - Ondes et chocs dans les structures (cours,TD)
    - Méthode des éléments finis pour les structures linéaires/non-linéaires (cours,BE)
    - Projets de recherche

    Master 2 MS2SC (ENS Cachan, Université Paris-Saclay)
    - Formulation et contrôle des modèles (cours)

    Master 2 CHPS (UVSQ, Université Paris-Saclay)
    - Introduction à la mécanique des milieux continus (cours,TD)

    Teaching activities:

     

    1st year SAPHIRE (ENS Cachan)
    - Mathematics for modeling and simulation

    Master 1 Mechanics of Materials and Structures (ENS Cachan, Paris-Saclay University)
    - Continuum mechanics
    - Waves and shocks in mechanical structures
    - Structural analysis using the FEM (linear/nonlinear problems)
    - Research projects

    Master 2 MS2SC (ENS Cachan, Paris-Saclay University)
    - Model formulation and control

    Master 2 CHPS (UVSQ, Paris-Saclay University)
    - Introduction to continuum mechanics


    Responsabilités collectives :

       

    2011-: Représentant français au sein du comité "ECCOMAS Young Investigators"
    2011-2014: Responsable pédagogique du Master MIS année M2 - parcours TACS (ENS Cachan/ENSTA/UPMC)

    Organisation de conférence (chairman)
    2013: 2nd ECCOMAS Young Investigators Conference (YIC 2013), Bordeaux (avec C. Dobrzynski)
    2015: International Conference on Adaptive Modeling and Simulation (ADMOS 2015), Nantes, (avec F. Chinesta)

    Co-organisation de mini-symposium
    - "Reliable and robust methods for global and goal-oriented error estimation in finite element analyses" avec P. Diez, P. Ladevèze et E. Stein (ECCM 2010, Paris)
    - "Estimation of modeling error and model adaptation in computational mechanics" avec R. Cottereau, J.T. Oden et S. Prudhomme (ECCM 2010, Paris)
    - "Estimation of modeling error and adaptive modeling with applications in computational mechanics" avec H. Ben Dhia, R. Cottereau, J.T. Oden et S. Prudhomme (WCCM 2010, Sydney)
    - "Error estimation and modeling adaptation in computational mechanics" avec P. Ladevèze, P. Diez et M. Ainsworth (ECCOMAS 2012, Vienne)
    - "Guaranteed bounds" (ADMOS 2013, Lisbonne)
    - "Applications of error estimation and model adaptation in Computational Mechanics" avec P. Diez, F. Larsson et K. Van der Zee (WCCM 2014, Barcelone)
    - "Applications of error estimation and model adaptation in Computational Mechanics" avec S. Prudhomme et M. Laforest (USNCCM 2015, San Diego)
    - "Verification of reduced models in Computational Mechanics" avec P. Diez, F. Larsson et K. Van der Zee (ECCOMAS 2016, Ile de Crète)

    Collective responsabilities:

     

    2011-: French representative in the ECCOMAS Young Investigators Committee
    2011-2014: Pedagogic head of Master 2, Advanced Methods for Computational Structural Mechanics (ENS Cachan/ENSTA/UPMC)

    Conference organization (chairman)
    2013: 2nd ECCOMAS Young Investigators Conference (YIC 2013), Bordeaux (co-chair: C. Dobrzynski)
    2015: International Conference on Adaptive Modeling and Simulation (ADMOS 2015), Nantes, (co-chair: F. Chinesta)

    Mini-symposium co-organisation
    - "Reliable and robust methods for global and goal-oriented error estimation in finite element analyses" with P. Diez, P. Ladevèze, and E. Stein (ECCM 2010, Paris)
    - "Estimation of modeling error and model adaptation in computational mechanics" with R. Cottereau, J.T. Oden, and S. Prudhomme (ECCM 2010, Paris)
    - "Estimation of modeling error and adaptive modeling with applications in computational mechanics" with H. Ben Dhia, R. Cottereau, J.T. Oden, and S. Prudhomme (WCCM 2010, Sydney)
    - "Error estimation and modeling adaptation in computational mechanics" with P. Ladevèze, P. Diez, and M. Ainsworth (ECCOMAS 2012, Vienna)
    - "Guaranteed bounds" (ADMOS 2013, Lisbon)
    - "Applications of error estimation and model adaptation in Computational Mechanics" with P. Diez, F. Larsson, and K. Van der Zee (WCCM 2014, Barcelona)
    - "Applications of error estimation and model adaptation in Computational Mechanics" with S. Prudhomme and M. Laforest (USNCCM 2015, San Diego)
    - "Verification of reduced models in Computational Mechanics" with P. Diez, F. Larsson and K. Van der Zee (ECCOMAS 2016, Crete Island)


    Principales publications / Selected publications :

    Année 2016

    MARCHAND, B., CHAMOIN, L., REY, C. Real-time updating of structural mechanics models using Kalman filtering, modified Constitutive Relation Error, and Proper Generalized Decomposition. International Journal for Numerical Methods in Engineering. Vol 107. Num 9. Pages 786-810. 2016 DOI  

    WANG, L., CHAMOIN, L., LADEVEZE, P., ZHONG, H. Computable upper and lower bounds on eigenfrequencies. Computer Methods in Applied Mechanics and Engineering. Vol 302. Pages 27-43. 2016 DOI  

    MARCHAND, B., CHAMOIN, L., REY, C. On a Data Assimilation Method Coupling Kalman Filtering, MCRE Concept, and PGD Model Reduction for Real-Time Updating of Structural Mechanics Models. SIAM Conference on Uncertainty Quantification. 2016.

    CHAMOIN, L., LADEVEZE, P., ALLIER, P.E. Error estimation and adaptivity for PGD reduced models. SIAM Conference on Uncertainty Quantification. 2016. conférence invitée

    CHAMOIN, L., LEGOLL, F. Certified multiscale computations based on MsFEM and PGD model reduction. ECCOMAS 2016 - 7th European Congress on Computational Methods in Applied Sciences and Engineering. 2016.

    BRISARD, S., CHAMOIN, L. Constitutive relation error for FFT-based methods. ECCOMAS 2016 - 7th European Congress on Computational Methods in Applied Sciences and Engineering. 2016.

    PLED, F., CHAMOIN, L., ALLIER, P.E., LADEVEZE, P. On the control of PGD reduced-order approximations: error estimation and adaptivity. ECCOMAS 2016 - 7th European Congress on Computational Methods in Applied Sciences and Engineering. 2016.

    CHAMOIN, L., LEGOLL, F. Control of the Multiscale Finite Element Method using a posteriori error estimation. WCCM 2016 - 12th World Congress on Computational Mechanics. 2016.

    PRUDHOMME, S., KERGRENE, K., CHAMOIN, L. Optimization of model reduction methods with respect to quantities of interest. WCCM 2016 - 12th World Congress on Computational Mechanics. 2016.

    HILD, F., BOUTERF, A., CHAMOIN, L., LECLERC, H., MATHIEU, F., NEGGERS, J., PLED, F., TOMICEVIC, Z., ROUX, S. Toward 4D Mechanical Correlation. Workshop « New Challenges in Computational Mechanics ». 2016. confé,rence invité,e

    CHAMOIN, L., ALLIER, P.E., MARCHAND, B. Synergies between the Constitutive Relation Error concept and PGD model reduction for simplified V&V procedures. Workshop « New Challenges in Computational Mechanics ». 2016. invited conference

    HILD, F., BOUTERF, A., CHAMOIN, L., LECLERC, H., MATHIEU, F., NEGGERS, J., PLED, F., TOMICEVIC, Z., ROUX, S. Toward 4D Mechanical Correlation. Advanced Modeling and Simulation in Engineering Sciences. Vol 3. Num 1. Pages 1-26. 2016 DOI   HAL CNRS  

    CHAMOIN, L., ALLIER, P.E., MARCHAND, B. Synergies between the Constitutive Relation Error concept and PGD model reduction for simplified V&V procedures. Advanced Modeling and Simulation in Engineering Sciences. Vol 3. Num 18. 2016 DOI   HAL CNRS  

    LE COENT, A., DE VUSYT, F., REY, C., CHAMOIN, L., FRIBOURG, L. Control of mechanical systems using set-based methods. International Journal of Dynamics and Control. Pages 1-17. 2016 DOI  

    CHAMOIN, L. Verification and validation of Structural Mechanics models. Seminaire du laboratoire LJLRDA. 2016.

    CHAMOIN, L., LEGOLL, F. Multiscale computations with MsFEM: a posteriori error estimation, adaptive strategy, and coupling with PGD model reduction. 8th International Conference on Multiscale Materials Modeling (MMM 2016). 2016. keynote lecture

    CHAMOIN, L., LADEVEZE, P., ALLIER, P.E. Recent advances in error estimation and adaptivity for PGD reduced models. EMI International Conference. 2016.

    CHAMOIN, L., ALLIER, P.E., MARCHAND, B. Model reduction for verification and updating of Computational Mechanics models. ME3 Workshop on Recent Developments in Numerical Methods for Model Reduction. 2016

    LECOENT, A., FRIBOURG, L., MARKEY, N., DE VUYST, F., CHAMOIN, L. Distributed synthesis of state-dependent switching control. Lecture Notes in Computer Sciences. Vol 9899. Pages 119-133. 2016 DOI   HAL CNRS  

    MARCHAIS, J., CHAMOIN, L., REY, C. Wave filtering through a selective perfectly matched layer in multiscale couplings with dynamically incompatible models. International Journal for Numerical Methods in Engineering. 2016 DOI  

    Année 2015

    MARCHAND, B., CHAMOIN, L., REY, C. Recalage en temps réel de modèle mécanique par couplage entre filtre de Kalman, erreur en relation de comportement modifiée et réduction de modèle. Congres français de mecanique. 2015.

    ALLIER, P.E., CHAMOIN, L., LADEVEZE, P. Une nouvelle strategie de calcul de modeles reduits PGD basee sur l erreur en relation de comportement. CSMA 2015. 2015. keynote lecture

    ALLIER, P.E., CHAMOIN, L., LADEVEZE, P. An a posteriori verification procedure for PGD reduced models. Inovation in Construction . 2015.

    LE COENT, A., DE VUYST, F., REY, C., CHAMOIN, L., FRIBOURG, L. Guaranteed control of switched control systems using model order reduction and state-space bisection. Open Access Series in Informatics. 2015 DOI  

    CHAMOIN, L., LEGOLL, F., LE BRIS, C. A posteriori error estimation and adaptive strategy for multiscale computations based on MsFEM. YIC GACM 2015 - 3rd ECCOMAS Young Investigators Conference. 2015.

    CHAMOIN, L., LEGOLL, F., LE BRIS, C. Control of the multiscale finite element method using a posteriori error estimation and adaptive strategy. USNCCM13 - 13th US National Congress on Computational Mechanics. 2015.

    LADEVEZE, P., ALLIER, P.E., CHAMOIN, L., NERON, D. Verification and effectivity of PGD computational techniques. USNCCM13 - 13th US National Congress on Computational Mechanics. 2015.

    CHAMOIN, L., MARCHAND, B., REY, C. Real-time model updating using modified CRE, Kalman filtering, and PGD-reduced models. ADMOS 2015 - 7th International Conference on Adaptive Modeling and Simulation. 2015.

    LADEVEZE, P., ALLIER, P.E., CHAMOIN, L., NERON, D. Effectivity and limits of PGD computational techniques. ADMOS 2015 - 7th International Conference on Adaptive Modeling and Simulation. 2015.

    ALLIER, P.E., CHAMOIN, L., LADEVEZE, P. A posteriori verification of PGD reduced models with application to engineering computation. ADMOS 2015 - 7th International Conference on Adaptive Modeling and Simulation. 2015.

    WANG, L., CHAMOIN, L., LADEVEZE, P. Verification for eigenvalue problems. ADMOS 2015 - 7th International Conference on Adaptive Modeling and Simulation. 2015.

    MARCHAND, B., CHAMOIN, L., REY, C. Couplage entre filtre de Kalman, erreur en relation de comportement modifiée, et réduction de modèle pour le recalage en temps réel de modèles dynamiques. CSMA 2015. 2015.

    LE COENT, A., DE VUYST, F., REY, C., CHAMOIN, L., FRIBOURG, L. Contrôle garanti de systèmes quantifiés par décomposition de l'espace des états d'un modèle différentiel réduit. CSMA 2015. 2015.

    CHAMOIN, L. Goal-oriented strategy for model verification, reduction, and validation in Computational Mechanics. Séminaire IMT. 2015.

    CHAMOIN, L. Goal-oriented modeling in Computational Mechanics. Séminaire Aristote. 2015.

    ALLIER, P.E., CHAMOIN, L., LADEVEZE, P. New PGD computational method based on CRE. NTCS 2015 - 2nd Thematic Workshop CSMA-SEMNI. 2015

    LE COENT, A., DE VUYST, F., REY, C., CHAMOIN, L., FRIBOURG, L. Guaranteed control of switched control systems using model order reduction and state-space bisection. SynCoP 2015 - 2nd International Workshop on Synthesis of Complex Parameters. 2015

    MARCHAND, B., CHAMOIN, L., REY, C. Coupling Modified Constitutive Relation Error, Model Reduction and Kalman filtering algorithms for Real-Time Parameters Identification. NCMIP 2015 - 5th International Workshop on New Computational Methods for Inverse Problems. 2015. poster

    MARCHAND, B., CHAMOIN, L., REY, C. PGD reduced models for Real-time model updating using modified CRE and Kalman filtering. 13th U.S. National Congress on Computational Mechanics (USNCCM). 2015.

    ALLIER, P.E., CHAMOIN, L., LADEVEZE, P. Proper Generalized Decomposition computational methods on a benchmark problem: introducing a new strategy based on Constitutive Relation Error minimization. Advanced Modeling and Simulation in Engineering Sciences. Vol 2. Num 17. 2015 DOI  

    CHAMOIN, L., LADEVEZE, P., ALLIER, P.E. Verification and effectivity of PGD model reduction. MORE Workshop on Model Reduction. 2015. conference generale

    CHAMOIN, L., DIEZ, P. Verifying calculations, forty years on: an overview of classical verification techniques for FEM simulations Publisher Springer International Publishing. Nb Pages 94. 2015 DOI  

    CHAMOIN, L., DIEZ, P. Advanced Modeling and Simulation in Engineering Sciences. Vol 2. 2015

    LADEVEZE, P., CHAMOIN, L. Verifying calculations, forty years on: an overview of classical verification techniques for FEM simulations. Section The Constitutive Relation Error Method: a general verification tool. Publisher Springer International Publishing. Nb Pages 94. 2015

    MARCHAND, B., CHAMOIN, L., REY, C. Coupling Modified Constitutive Relation Error, Model Reduction and Kalman Filtering Algorithms for Real-Time Parameters Identification. Journal of Physics: Comference Series. Vol 657. Num 1. Pages 12007-. 2015 DOI  

    ALLIER, P.E., CHAMOIN, L., LADEVEZE, P. PGD driven by the CRE: minimal CRE/PGD. Reduced Basis, POD and PGD Model Reduction Techniques. 2015. poster HAL CNRS  

    BRISARD, S., CHAMOIN, L. A posteriori error estimators for FFT-based numerical techniques. MAI Workshop Micromechanics of cementitious materials. 2015

    LEGOLL, F., CHAMOIN, L. A posteriori error estimation for multiscale computations based on MsFEM. Workshop on Multiscale Modeling and Analysis in Materials Science. 2015

    CHAMOIN, L. Data assimilation on nonlinear dynamical systems using Kalman filtering, model reduction, and the concept of modified Constitutive Relation Error. Seminaire du laboratoire POEMS. 2015.

    CHINESTA, F., CHAMOIN, L., DIEZ, P. Proceedings of the ADMOS 2015 Conference (CIMNE). ADMOS 2015 - 7th International Conference on Adaptive Modeling and Simulation. 2015.

    Année 2014

    MARCHAIS, J., REY, C., CHAMOIN, L. Geometrically consistent approximations of the energy for the transition between nonlocal and local discrete models. Computational Materials Science. Vol 85. Pages 280-294. 2014 DOI  

    CHAMOIN, L. Vérification et validation de modèles pour le calcul de quantités d'intérêt en ingénierie mécanique. Séminaire interne du laboratoire Navier. 2014.

    CHAMOIN, L., LADEVEZE, P., WAEYTENS, J. Goal-oriented updating of mechanical models using the adjoint framework. V&V 2014 - Verification and Validation Symposium. 2014.

    CHAMOIN, L., LADEVEZE, P., ALLIER, P.E. Recent advances in the control of PGD-based approximations. Numerical Methods for High-Dimensional Problems. 2014

    WAEYTENS, J., CHAMOIN, L., LADEVEZE, P. Monitoring of reinforced concrete beam using goal-oriented inverse modeling techniques based on the error in the constitutive law. 7th European Workshop on Structural Health Monitoring. 2014.

    ALLIER, P.E., CHAMOIN, L., LADEVEZE, P. A New PGD Approximation: Computation and Verification. CST 2014 - 12th International Conference on Computational Structures Technology. Num 190. 2014. DOI  

    PLED, F., CHAMOIN, L., LADEVEZE, P. On the verification of PGD reduced-order models. WCCM XI - 11th World Congress on Computational Mechanics. 2014.

    MENDONCA, P., CHAMOIN, L., DE BARCELLOS, C.. Aspects of error estimate in quantity of interest for the FSDT laminated plate model and GFEM. WCCM XI - 11th World Congress on Computational Mechanics. 2014.

    CHAMOIN, L., LADEVEZE, P., WAEYTENS, J. Goal-oriented strategy for the updating of mechanical models. WCCM XI - 11th World Congress on Computational Mechanics. 2014.

    CHAMOIN, L., LADEVèZE, P., WAEYTENS, J. Goal-oriented updating of mechanical models using the adjoint framework. Computational Mechanics. Vol 54. Num 6. Pages 1415-1430. 2014 DOI  

    CHAMOIN, L. Goal-oriented approach for verification, reduction, and updating of mechanical models. Séminaire Modélisation et Calcul Scientifique - INRIA-Rocquencourt. 2014.

    CHAMOIN, L., LADEVEZE, P., WAEYTENS, J. Goal-oriented updating of mechanical models. Journal of Physics: Comference Series. Vol 542. Pages 12004-. 2014 DOI  

    LE COENT, A., DE VUYST, F., REY, C., CHAMOIN, L., FRIBOURG, L. An adaptation of the tool MINIMATOR for the control of PDEs using interpolating model order reduction techniques. 2nd International Workshop on Simulation at the System Level. 2014

    DE VUYST, F., CHAMOIN, L., REY, C. Couplage de modèles multi-échelles espace/temps en dynamique. 7e Journée Farman . 2014

    LE COENT, A., CHAMOIN, L., REY, C., DE VUYST, F., FRIBOURG, L. Conception de systèmes de commande à commutation pour les systèmes aux dérivées partielles. 7e Journée Farman . 2014

    CHAMOIN, L. Vérification des modèles numériques: estimation d'erreur et techniques adaptatives. Séminaire J.L. Lions du Collège de France. 2014.

    COURARD, A., NERON, D., CHAMOIN, L., LADEVEZE, P., BERGEROT, A., BALLERE, L. PGD-virtual chats for structural design. WCCM XI - 11th World Congress on Computational Mechanics. 2014.

    Année 2013

    ZACCARDI, C., CHAMOIN, L., COTTEREAU, R., BEN DHIA, H. Error estimation and model adaptation for a stochastic-deterministic coupling method based on the Arlequin framework. International Journal for Numerical Methods in Engineering. Vol 96. Num 2. Pages 87-109. 2013 DOI  

    LADEVEZE, P., PLED, F., CHAMOIN, L. New bounding techniques for goal-oriented error estimation applied to linear problems. International Journal for Numerical Methods in Engineering. Vol 93. Num 13. Pages 1345-1380. 2013 Draft PDF   DOI  

    CHAMOIN, L., LADEVEZE, P., PLED, F. Recent advances in the control of PGD-based approximations. ADMOS 2013 - International Conference on Adaptive Modeling and Simulation. 2013.

    CHAMOIN, L., LADEVEZE, P., PLED, F. Verification et validation de modèles dédiées à des quantités d'intérêt. CSMA 2013. 2013.

    PLED, F., CHAMOIN, L., LADEVEZE, P. New bounding techniques for goal-oriented error estimation in FE simulations. ADMOS 2013 - International Conference on Adaptive Modeling and Simulation. 2013.

    CHAMOIN, L., LADEVEZE, P., PLED, F. Goal-oriented control of PGD-based simulations. USNCCM 12 - 12th National Congress on Computational Mechanics. 2013.

    MARCHAIS, J., REY, C., CHAMOIN, L. Modélisation multi-échelle en dynamique : réduction des réflexions aux interfaces. CSMA 2013. 2013.

    MARCHAIS, J., REY, C., CHAMOIN, L. Consistent interface between local and nonlocal models: application to transient dynamics. 12th U.S. National Congress on Computational Mechanics (USNCCM12). 2013.

    BOUCLIER, R., LOUF, F., CHAMOIN, L. Real-time validation of mechanical models coupling PGD and constitutive relation error. Computational Mechanics. Vol 52. Num 4. Pages 861-883. 2013 DOI  

    CHAMOIN, L., DESVILLETTES, L. Control of modeling errors in the coupling of linear transport and diffusion models. Computer Methods in Applied Mechanics and Engineering. Vol 261-262. Pages 83-95. 2013 DOI  

    REY, C., MARCHAIS, J., CHAMOIN, L. A multiscale computational framework for nonlocal discrete element models: reduction of spurious effects at interfaces. Coupled Problems. 2013.

    CHAMOIN, L., LADEVèZE, P. Goal-oriented model calibration using the adjoint framework. YIC 2013 - 2nd ECCOMAS Young Investigators Conference. 2013.

    CHAMOIN, L. Stratégie de vérification et validation de modèles dédiée au calcul de quantités d'intérêt en ingénierie mécanique. Séminaire du laboratoire MSME. 2013.

    CHAMOIN, L. Strategy for Goal-Oriented Model Verification and Validation in Computational Mechanics. Séminaire interne de l'IMB. 2013.

    Année 2012

    WAEYTENS, J., CHAMOIN, L., LADEVEZE, P. Guaranteed error bounds on pointwise quantities of interest for transient viscodynamics problems. Computational Mechanics. Vol 49. Num 3. Pages 291-307. 2012 DOI  

    PLED, F., CHAMOIN, L., LADEVEZE, P. An enhanced method with local energy minimization for the robust a posteriori construction of equilibrated stress fields in finite element analyses. Computational Mechanics. Vol 49. Num 3. Pages 357-378. 2012 Draft PDF   DOI  

    LADEVEZE, P., CHAMOIN, L. PGD approximations in Computational Mechanics: basic features and verification. Advances in Computational Science, Engineering, and Mathematics. 2012

    CHAMOIN, L. Goal-oriented error estimation in computational mechanics. Oberwolfach Workshop - Advanced Computational Engineering. 2012.

    CHAMOIN, L., LADEVèZE, P. Control of numerical simulations performed using the Proper Generalized Decomposition. ECCOMAS YIC 2012 - Young Investigators Conference. 2012.

    CHAMOIN, L., LADEVEZE, P., PLED, F. Goal-oriented control of finite element models: recent advances and performances on 3D industrial applications. ASME 2012 - 11th Biennal Conference on Engineering Systems Design and Analysis. 2012.

    PLED, F., CHAMOIN, L., LADEVEZE, P. New advances in robust goal-oriented error estimation for FE simulations. WCCM - 10th WORLD CONGRESS ON COMPUTATIONAL MECHANICS. 2012.

    CHAMOIN, L., PLED, F., LADEVEZE, P. Mechanics-based verification method - application to computational models. ICTAM 2012 - 23rd International Congress of Theoretical And Applied Mechanics. 2012.

    CHAMOIN, L., LADEVEZE, P., PLED, F. Robust control of PGD-based reduced models. International Workshop on Virtual Materials. 2012

    CHAMOIN, L., MARCHAIS, J., REY, C. Goal-oriented error estimation and adaptive control in the reduction of nonlocal particle models. ECCOMAS 2012 - European Congress on Computational Methods in Applied Sciences and Engineering. 2012.

    CHAMOIN, L., FLORENTIN, E., PAVOT, S., VISSEQ, V. Robust goal-oriented error estimation based on the constitutive relation for stochastic problems. Computers & Structures. Vol 106-107. Pages 189-195. 2012 DOI  

    REY, C., MARCHAIS, J., CHAMOIN, L. Geometrically consistent approximations of the energy in the quasi-continuum framework. WCCM - 10th WORLD CONGRESS ON COMPUTATIONAL MECHANICS. 2012.

    CHAMOIN, L., LADEVEZE, P. Robust control of PGD-based numerical simulations. European Journal of Computational Mechanics . Vol 21. Num 3-6. Pages 195-207. 2012 DOI  

    MARCHAIS, J., REY, C., CHAMOIN, L. Representation of Localized Phenomena in Dynamics using Multi-Scale Coupling. The Eleventh International Conference on Computational Structures Technology. 2012.

    LADEVEZE, P., CHAMOIN, L., NERON, D. PGD in Computational Mechanics: basic features, verification and engineering applications. ECCOMAS 2012 - European Congress on Computational Methods in Applied Sciences and Engineering. 2012. semi-plenary lecture

    ZACCARDI, C., CHAMOIN, L., COTTEREAU, R., BEN DHIA, H. Adaptive coupling between stochastic and deterministic continuum models in the framework of the Arlequin method. ECCOMAS 2012 - European Congress on Computational Methods in Applied Sciences and Engineering. 2012.

    LADEVEZE, P., CHAMOIN, L. Bytes and Science. Section Towards guaranteed PGD-reduced models. Publisher CIMNE . Editor G. Zavarise and D.P. Boso. Nb Pages 292. 2012

    Année 2011

    CHAMOIN, L. Analyse de structures à travers des quantités d'intérêt: calcul, vérification et validation des modèles . Séminaire du LMT - ENS Cachan. 2011

    WAEYTENS, J., CHAMOIN, L., LADEVèZE, P. Obtention de bornes strictes et pertinentes sur une quantité d'intérêt en dynamique. 10e Colloque National En Calcul Des Structures. 2011.

    WAEYTENS, J., CHAMOIN, L., LADEVEZE, P. Effective and strict error bounds on quantities of interest in transient dynamics. International Conference on Adaptivite Modeling and Simulation. 2011.

    PLED, F., CHAMOIN, L., LADEVEZE, P. On the techniques for constructing admissible stress fields in model verification: performances on engineering examples. International Journal for Numerical Methods in Engineering. Vol 88. Num 5. Pages 409-441. 2011 Draft PDF   DOI  

    FLORENTIN, E., CHAMOIN, L., PAVOT, S., VISSEQ, V. Robust goal-oriented error estimation in the stochastic framework. International Conference on Adaptivite Modeling and Simulation. 2011.

    ZACCARDI, C., CHAMOIN, L., COTTEREAU, R., BEN DHIA, H. Adaptive coupling of a stochastic continuum model with a deterministic one in the framework of the Arlequin method . MASCOT NUM 2011 Workshop. 2011

    CHAMOIN, L., LADEVèZE, P. Contrôle robuste des simulations numériques utilisant la PGD. 10e Colloque National En Calcul Des Structures. 2011.

    ZACCARDI, C., CHAMOIN, L., COTTEREAU, R., BEN DHIA, H. Couplage adaptatif d'un modèle stochastique discret et d'un modèle déterministe continu par la méthode Arlequin. 10e Colloque National En Calcul Des Structures. 2011.

    CHAMOIN, L., DESVILLETTES, L. Control of modeling errors in neutron transport simulations. International Conference on Adaptivite Modeling and Simulation. 2011.

    PLED, F., CHAMOIN, L., LADEVEZE, P. Construction of admissible fields and goal-oriented error estimation: performances on engineering examples. International Conference on Adaptivite Modeling and Simulation. 2011.

    ZACCARDI, C., CHAMOIN, L., COTTEREAU, R., BEN DHIA, H. Error estimation for the coupling between a deterministic continuum model and a stochastic discrete model in the Arlequin framework. International Conference on Adaptivite Modeling and Simulation. 2011.

    LADEVEZE, P., CHAMOIN, L. On the verification of model reduction methods based on the Proper Generalized Decomposition. Computer Methods in Applied Mechanics and Engineering. Vol 200. Pages 2032-2047. 2011 DOI  

    CHAMOIN, L. Robust goal-oriented error estimation in the XFEM framework. XFEM 2011 - International Conference on Extended Finite Element Methods. 2011. keynote lecture conference semi-pleniere

    CHAMOIN, L., LADEVEZE, P., WAEYTENS, J. The CRE-method: a general approach to get guaranteed local error bounds for time-dependent problems. ICIAM 2011 - 7th International Congress on Industrial and Applied Mathematics. 2011.

    CHAMOIN, L., DESVILLETTES, L. Goal-oriented modeling error estimation applied to neutronics. USNCCM 11 - 11th National Congress on Computational Mechanics. 2011.

    PRUDHOMME, S., ODEN, J., CHAMOIN, L., BEN DHIA, H. Adaptive modeling and simulation for coupling methods. International Conference on Adaptivite Modeling and Simulation. 2011. plenary lecture

    PLED, F., CHAMOIN, L., LADEVEZE, P. Construction de champs admissibles pour le calcul d'erreur locale : application sur des exemples industriels. 20e Congrès Français de Mécanique - CFM. 2011.

    CHAMOIN, L. Structural analysis through quantities of interest: model computation, verification and validation. Workshop - Virtual Materials and Structures and their Validation. 2011

    Année 2010

    PANETIER, J., LADEVEZE, P., CHAMOIN, L. Strict and effective bounds in goal-oriented error estimation applied to fracture mechanics problems solved with XFEM. International Journal for Numerical Methods in Engineering. Vol 81. Num 6. Pages 671-700. 2010 DOI  

    LADEVEZE, P., CHAMOIN, L., FLORENTIN, E. A new non-intrusive technique for the construction of admissible stress fields in model verification. Computer Methods in Applied Mechanics and Engineering. Vol 199. Num 9-12. Pages 766-777. 2010 DOI  

    WAEYTENS, J., LADEVEZE, P., CHAMOIN, L. Verification in transient dynamics through guaranteed error bounds . ECCM, 10. 2010.

    PRUDHOMME, S., BEN DHIA, H., CHAMOIN, L., ODEN, J.T. On an optimal approach for adaptive atomic-to-continuum coupling methods. ECCM, 10. 2010.

    DESVILLETTES, L., CHAMOIN, L. Control of simulation models used for kinetic equations. ECCM, 10. 2010.

    CHAMOIN, L., LADEVEZE, P. Control of numerical outputs for fracture mechanics problems solved with XFEM. ECCM, 10. 2010.

    ZACCARDI, C., COTTEREAU, R., CHAMOIN, L., BEN DHIA, H. Multiscale stochastic model and coupling with the Arlequin method. ECCM, 10. 2010.

    CHAMOIN, L., LADEVEZE, P. Robust control on nonlinear pointwise outputs of interest approximated with the finite element method. WCCM/APCOM 2010. 2010.

    CHAMOIN, L., PRUDHOMME, S., BEN DHIA, H., ODEN, J.T. Ghost forces and spurious effects in atomic-to-continuum coupling methods by the Arlequin approach. International Journal for Numerical Methods in Engineering. Vol 83. Pages 1081-1113. 2010 DOI  

    LADEVEZE, P., CHAMOIN, L. Calculation of strict error bounds for finite element approximations of non-linear pointwise quantities of interest. International Journal for Numerical Methods in Engineering. Vol 84. Pages 1638-1664. 2010 DOI  

    PRUDHOMME, S., BEN DHIA, H., CHAMOIN, L., ODEN, J.. Optimal control of modeling errors for multiscale simulations. WCCM/APCOM 2010. 2010.

    COTTEREAU, R., CHAMOIN, L., DIEZ, P. Strict error bounds for linear and nonlinear solid mechanics problems using a patch-based flux-free method. Mécanique & Industries. Vol 11. Pages 249-254. 2010 DOI  

    CHAMOIN, L. Vérification de modèles à travers des quantités d'intérêt. Séminaire du CMLA - ENS Cachan. 2010

    BEN DHIA, H., CHAMOIN, L., ODEN, J.T., PRUDHOMME, S. A new adaptive modeling strategy based on optimal control for atomic-to-continuum coupling simulations. Computer Methods in Applied Mechanics and Engineering. Vol 200. Num 37-40. Pages 2675-2696. 2010 DOI  

    Année 2009

    PRUDHOMME, S., CHAMOIN, L., BEN DHIA, H., BAUMAN, P. An adaptive strategy for the control of modeling error in two-dimensional atomic-to-continuum coupling simulations. Computer Methods in Applied Mechanics and Engineering. Vol 198. Num 21-26. Pages 1887-1901. 2009 DOI  

    ODEN, J., PRUDHOMME, S., BAUMAN, P., CHAMOIN, L. Bridging the scales in Science and Engineering. Section Estimation and control of modeling error : a general approach to multiscale modeling. Publisher J. Fish. Editor Oxford University Press. 2009

    CHAMOIN, L., LADEVEZE, L. Strict and practical bounds through a non-intrusive and goal-oriented error estimation method for linear viscoelasticity problems. Finite Elements in Analysis and Design. Vol 45 . Num 4. Pages 251-262. 2009 DOI  

    WAEYTENS, J., CHAMOIN, L., LADEVEZE, P. Model Verification in Dynamics Through Strict Error Upper Bounds. ADMOS 2009 - 4th International Conference on Adaptative Modeling and Simulation. 2009.

    WAEYTENS, J., CHAMOIN, L., LADEVEZE, P. Model verification in dynamics through strict upper error bounds. CompDyn 2009 , 2nd International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering. 2009.

    WAEYTENS, J., CHAMOIN, L., LADEVEZE, P. Obtention de bornes garanties sur une quantité d’intérêt en dynamique. CFM 2009 - 19e Congrès Français de Mécanique. 2009.

    CHAMOIN, L., LADEVEZE, P., FLORENTIN, E. Goal-oriented and guaranteed error estimation adapted to finite element codes. ADMOS 2009 - 4th International Conference on Adaptative Modeling and Simulation. 2009.

    PRUDHOMME, S., CHAMOIN, L., BEN DHIA, H., BAUMAN, P., ODEN, J. Adaptive multiscale simulations for complex molecular structures. ADMOS 2009 - 4th International Conference on Adaptative Modeling and Simulation. 2009.

    CHAMOIN, L., LADEVEZE, P. Encadrement garanti et précis de quantités d'intérêt dans les simulations numériques par une méthode non-intrusive adaptée aux codes de calcul. 9e Colloque National en Calcul des Structures 2009 . 2009.

    CHAMOIN, L., PANETIER, J., LADEVEZE, P. Goal-oriented error estimation through strict and effective bounds for fracture mechanics problems solved with XFEM. MAFELAP 2009 - The Mathematics of Finite Elements and Applications. 2009.

    CHAMOIN, L., LADEVEZE, P., FLORENTIN, E. On the construction of admissible fields to obtain strict, high-quality, and practical bounds in goal-oriented error estimation. USNCCM 10-10th US National Congress of Computational Mechanics. 2009.

    BAUMAN, P., BEN DHIA, H., CHAMOIN, L., ODEN, J., PRUDHOMME, S. Adaptive blending of molecular and continuum models. USNCCM 10-10th US National Congress of Computational Mechanics. 2009.

    LADEVEZE, P., CHAMOIN, L. Verification of XFEM models through strict error bounds. Colloque BICTAM - Meshfree, Meshless, Particle and Gerenalized Extended FEM. 2009.

    CHAMOIN, L. Sur le contrôle des modèles utilisés pour la simulation numérique à l'échelle particulaire. Séminaire de l'Institut Farman. 2009

    CHAMOIN, L. Estimation and control of modeling errors in the multiscale simulation of atomistic systems. Journées de Metz: Aspects analytiques et méthodes de calcul en modélisation multi-échelle et applications. 2009

    CHAMOIN, L. Utilisation de méthodes robustes et non-intrusives pour l'encadrement de quantités locales dans les calculs EF. Séminaire à l'Ecole Centrale Paris. 2009

    PRUDHOMME, S., ODEN, J. T., CHAMOIN, L., BAUMAN, P., BEN DHIA, H. Goal-oriented adaptivity for the control of modeling errors in multiscale simulations. SIAM Conference on Computational Science and Engineering. 2009.

    PRUDHOMME, S., BOUCLIER, R., CHAMOIN, L., BEN DHIA, H., ODEN, J.. Analysis of an averaging operator for atomic-to-continuum coupling methods by the Arlequin approach. Numerical Analysis and Multiscale Computations. Vol 82. Pages 365-396. 2009.

    Année 2008

    CHAMOIN, L., LADEVEZE, P. A non-intrusive method for the calculation of strict and efficient bounds of calculated outputs of interest in linear viscoelasticity problems. Computer Methods in Applied Mechanics and Engineering. Vol 197. Num 9/12. Pages 994-1014. 2008 DOI  

    CHAMOIN, L., LADEVEZE, P. A non-intrusive approach of goal-oriented error estimation for evolution problems solved by the Finite Element Method. Revue Européenne de Mécanique Numérique. Vol 17. Num 5/7. Pages 981-992. 2008 DOI  

    CHAMOIN, L., ODEN, J.T., PRUDHOMME, S. A stochastic coupling method for atomic-to-continuum simulations. Computer Methods in Applied Mechanics and Engineering. Vol 197. Num 43-44. Pages 3530-3546. 2008 DOI  

    CHAMOIN, L., PRUDHOMME, S., ODEN, J.T. A coupling method to perform Monte-Carlo simulations at atomic scale. SIAM Conference on Mathematical Aspects of materials Science. 2008.

    PRUDHOMME, S., ODEN, J.T., BAUMAN, P., CHAMOIN, L., BEN DHIA, H. Estimation of modeling errors for a coupling method. WCCM 8 - 8th World Congress on Computational Mechanics/ECCOMAS 2008 - 5th European Congress on Computational Methods in Applied Sciences and Engineering. 2008.

    CHAMOIN, L. A non-intrusive approach to get strict and sharp error bounds on local FE quantities for evolution problems. Symposium of the 20th R.J. Melosh Competition (Duke University). 2008.

    ODEN, J.T., BAUMAN, P.T., CHAMOIN, L., PRUDHOMME, S.. Estimation and control of modeling errors in multiscale simulations. Summer School on Multiscale Modeling and Analysis. 2008.

    DEMKOWICZ, L., PRUDHOMME, S., RACHOWICZ, W., QIU, W., CHAMOIN, L. Multiscale analysis of vibrations of streamers. Summer School on Multiscale Modeling and Analysis. 2008.

    PRUDHOMME, S., BAUMAN, P.T., BEN DHIA, H., CHAMOIN, L., ODEN, J.T. . On the control of the position and size of the overlap region in an atomistic-to-continuum coupling method. SIAM Conference on Mathematical Aspects of materials Science. 2008.

    ODEN, J.T., PRUDHOMME, S., BAUMAN, P.T., CHAMOIN, L. Adaptive control of modeling error for multiscale simulations. MMM 2008 - 4th International Conference on Multiscale Materials Modeling. 2008.

    PRUDHOMME, S., CHAMOIN, L., ODEN, J.T., BAUMAN, P.T. On a stochastic approach for atomic-to continuum coupling methods. MMM 2008 - 4th International Conference on Multiscale Materials Modeling. 2008.

    Année 2007

    CHAMOIN, L. Encadrement a posteriori de quantités locales dans les problèmes de viscoélasticité linéaire résolus par la Méthode des Eléments Finis. Thèse de Doctorat , ENS de Cachan. 2007 Draft PDF  

    CHAMOIN, L., LADEVEZE, P. Encadrement de quantités d'intérêt dans les calculs éléments finis en viscoélasticité. 8e Colloque National en Calcul des Structures. 2007.

    CHAMOIN, L., LADEVEZE, P. Bounds on history-dependent or independent local quantities in viscoelasticity problems solved by approximate methods. International Journal for Numerical Methods in Engineering. Vol 71. Num 12. Pages 1387-1411. 2007 DOI  

    CHAMOIN, L. Encadrement a posteriori de quantités locales dans les problèmes de viscoélasticité linéaire résolus par la Méthode des Éléments Finis. Séminaire du LaMSID-EDF/CNRS. 2007.

    CHAMOIN, L., LADEVEZE, P. A non-intrusive version to get strict and sharp error bounds of local quantities for linear viscoelasticity problems. ADMOS 2007- ECCOMAS Thematic Conference-International Conference on Adaptative Modeling and Simulation. 2007.

    ODEN, J.T., PRUDHOMME, S., BAUMAN, P.T., CHAMOIN, L., DEMKOWICZ, L., JHURANI, C., BASS, J., WILSON, G., COLLISTER, E. Multiscale modeling of complex systems. MAMOS Workshop - Mathematics : Analysis, Modeling, Optimization and Simulation. 2007.

    Année 2006

    CHAMOIN, L. Encadrement de quantités d'intérêt exactes dans les problèmes d'évolution résolus par éléments finis. 7es Journées du LMT "La vision de la mécanique moderne au LMT-Cachan : du réel au virtuel". 2006

    CHAMOIN, L., LADEVEZE, P. Strict, sharp and practical bounds of computed outputs of interest for evolution problems. ECCM 2006 - 3d European Conference on Computational Mechanics. 2006.

    CHAMOIN, L., LADEVEZE, P. Effective bounds of calculated outputs of interest for time-dependent structural problems. WCCM 7 - 7th World Congress on Computational Mechanics. 2006.

    Année 2005

    CHAMOIN, L., FLORENTIN, E., LADEVEZE, P. Estimation d'erreur locale en temps dans les problèmes d'évolution. CFM 2005 - 17e Congrès français de mécanique. 2005.

    LADEVEZE, P., CHAMOIN, L., FLORENTIN, E. Strict upper and lower bounds of outputs of interest for linear and nonlinear structural problems. ADMOS 2005 - 2d International Conference on Adaptive Modeling and Simulation. 2005. conference pleniere

    LADEVEZE, P., CHAMOIN, L., FLORENTIN, E. Strict upper and lower bounds of outputs of interest in computational structural mechanics. USNCCM 8 - 8th US National Congress on Computational Mechanics. 2005. Keynote lecture

    CHAMOIN, L. On a suitable framework for goal-oriented error estimation in linear viscoelasticity problems. ICES Seminar. 2005.

    Année 2004

    PRUDHOMME, S., NOBILE, F., CHAMOIN, L., ODEN, J. Analysis of a subdomain-based error estimator for finite element approximations of elliptic problems. Numerical Methods for Partial Differential Equations. Vol 20. Num 2. Pages 165-192. 2004 DOI