Ludovic CHAMOIN - LMT Cachan

Ludovic CHAMOIN

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   Nom / Last Name  CHAMOIN
   Prénom / First Name Ludovic

   Matre de Confrences (HDR) - Assistant Professor
Dlgation INRIA - On leave at INRIA (2014-2016)

   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 :

   

2011-: Membre du Conseil de Laboratoire au LMT
2009-: Responsable de l'UTR "Vrification et Validation des Modles"
2009-: Membre nomm du Conseil Scientifique du LMT

LMT Responsibilities:

 

2011-: Member of LMT board
2009-: Head of the "Model Verification and Validation" research team
2009-: Member of the Scientific Council of LMT


Activités de recherche :

Vrification des simulations numriques
- estimateurs d'erreur globale/locale garantis
- techniques de reconstruction de champs admissibles
- approches non-intrusives pour l'encadrement efficace et pratique de l'erreur sur des quantits d'intrt
- applications diverses (XFEM, dynamique transitoire, vibrations, analyse isogomtrique, visco-plasticit, contact,...)

Rduction de modle et contrle de l'erreur de modle
- couplages multichelle (atomique / continu, dterministe / stochastique, transport / diffusion,...)
- bases rduites et sparation de variables (POD,PGD)
- contrle des modles vis--vis de quantits d'intrt (technique de l'adjoint)
- adaptation de modle

Validation et recalage des modles
- erreur en relation de comportement modifie
- validation en temps rel et dialogue essais/calculs (DDDAS)
- assimilation de donnes, filtres de Kalman
- approches multi-fidlit
- contrle optimal du dispositif exprimental
- quantification des incertitudes, infrence bayesienne

Distinctions:
Prix de thse du CSMA
Mdaille Robert J. Melosh
Prix John Argyris (Elsevier)

Current research interest:

 

Verification of numerical simulations
- guaranteed global/goal-oriented error estimates
- techniques to construct admissible fields
- non-intrusive approaches for effective error bounds on quantities of interest
- applications: 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

Validation and updating of models
- modified constitutive relation error
- real-time validation and dialog experiments/simulations (DDDAS)
- data assimilation, Kalman filters
- multi-fidelity approaches
- optimal control of the the experimental system
- uncertainty quantification, Bayesian inference

Awards:
National PhD Award from the French Computational Mechanics Association (CSMA)
Robert J. Melosh Medal
John Argyris Award (Elsevier)


Activités d'enseignement :

   

1re anne SAPHIRE (ENS Cachan)
- S243: Modlisation des solides (TD)

Anne M1 du Master MIS (ENS Cachan/UPMC)
- MSX02: Vibrations et ondes (cours,TD)
- MSX03: Mthodes numriques (TD)
- MSX05: Travaux d'tude et de recherche (organisation, projets)
- MSM21: Analyse des structures en thermolasticit linaire par la MEF (BE)
- MSM22: Analyse du comportement non-linaire des structures par la MEF (BE)
- MSM23: Ondes et chocs dans les structures (cours, TD)

Prparation l'Agrgation de Mcanique (ENS Cachan)
- A11a: Mcanique des milieux continus (cours, TD)

Anne M2 du Master MIS - parcours TACS (ENS Cachan/ENSTA/UPMC)
- NSM51: Formulation et contrle des modles (cours)

Teaching activities:

 

1st year SAPHIRE (ENS Cachan)
- S243: Modeling of solids

Master 1 Mechanics and Systems Engineering (ENS Cachan/UPMC)
- MSX02: Vibrations and waves
- MSX03: Numerical methods
- MSX05: Research projects
- MSM21: Structural analysis using the FEM - linear thermoelasticity
- MSM22: Structural analysis using the FEM - nonlinear materials
- MSM23: Waves and shocks in structures

Preparation for Agregation of Mechanics (ENS Cachan)
- A11a: Continuum mechanics

Master 2 option research, Advanced Methods for Computational Structural Mechanics (ENS Cachan/ENSTA/UPMC)
- NSM51: model formulation and control


Responsabilités collectives :

   

2011-: Responsable pdagogique du Master MIS anne M2 - parcours TACS (ENS Cachan/ENSTA/UPMC)

2011-: Reprsentant du CSMA au sein du comit "ECCOMAS Young Investigators"

2012-: Membre du comit consultatif technique de la confrence ADMOS

Organisation de confrence
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. Ladevze 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. Ladevze, 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)

Collective responsabilities:

 

2011-: Pedagogic head of Master 2, Advanced Methods for Computational Structural Mechanics (ENS Cachan/ENSTA/UPMC)

2011-: Representative of CSMA association in the ECCOMAS Young Investigators Committee

2012-: Member of the Technical Advisory Panel of the ADMOS conference

Conference organisation
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. Ladevze, 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. Ladevze, 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)


Principales publications / Selected publications :

Année 2016

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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. 2016 DOI  

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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  

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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.

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

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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.

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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.

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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.

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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.

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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.

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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

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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

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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. 2016 DOI  

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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. 2016

Année 2015

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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.

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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

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

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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  

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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.

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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.

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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.

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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.

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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.

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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.

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

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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.

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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.

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

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

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

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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

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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

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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.

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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  

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

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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  

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

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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

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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  

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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  

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

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

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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.

Année 2014

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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  

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

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

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

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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.

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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  

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

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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.

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

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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  

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

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

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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

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

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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

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

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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

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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  

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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  

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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.

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

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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.

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

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

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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.

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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  

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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  

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

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

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

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

Année 2012

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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  

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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  

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

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

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

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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.

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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.

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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.

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

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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.

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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  

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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.

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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  

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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.

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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

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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.

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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

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

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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.

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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.

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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  

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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.

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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

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

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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.

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

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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.

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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.

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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  

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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

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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.

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

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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

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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.

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

Année 2010

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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  

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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  

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

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

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

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

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

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

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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  

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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  

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

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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  

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

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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

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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  

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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

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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  

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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

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

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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

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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

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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.

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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

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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  

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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  

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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  

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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.

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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.

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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.

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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.

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

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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.

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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.

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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

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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  

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

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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  

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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.

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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.

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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

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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

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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.

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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

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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.

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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

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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

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

Année 2004

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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