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Grégory LEGRAIN


Maître de conférences, Ecole Centrale Nantes - GeM Institute


Article dans une revue17 documents

  • Benoît Lé, Grégory Legrain, Nicolas Moes. Mixed dimensional modeling of reinforced structures. Finite Elements in Analysis and Design, Elsevier, 2017, 128, pp.1 - 18. 〈10.1016/j.finel.2017.01.002〉. 〈hal-01432692〉
  • Loïc Giraldi, Anthony Nouy, Grégory Legrain. Low-rank approximate inverse for preconditioning tensor-structured linear systems. SIAM Journal on Scientific Computing, Society for Industrial and Applied Mathematics, 2014, 36 (4), pp.A1850-A1870. 〈10.1137/130918137〉. 〈hal-01007458〉
  • Grégory Legrain, Nicolas Moës. Treatment of nearly-singular problems with the X-FEM. Advanced Modeling and Simulation in Engineering Sciences, 2014, pp.1-13. 〈10.1186/s40323-014-0013-5〉. 〈hal-01015607〉
  • Loïc Giraldi, Anthony Nouy, Grégory Legrain, Patrice Cartraud. Tensor-based methods for numerical homogenization from high-resolution images. Computer Methods in Applied Mechanics and Engineering, Elsevier, 2013, 254, pp.154-169. 〈10.1016/j.cma.2012.10.012〉. 〈hal-00762845〉
  • A. Matine, Nicolas Boyard, Patrice Cartraud, Grégory Legrain, Y. Jarny. Modeling of thermophysical properties in heterogeneous periodic media according to a multi- scale approach: Effective conductivity tensor and edge effects. International Journal of Heat and Mass Transfer, Elsevier, 2013, 62, pp.586-603. 〈10.1016/j.ijheatmasstransfer.2013.03.036〉. 〈hal-01007068〉
  • Grégory Legrain. A NURBS Enhanced eXtended Finite Element Approach for Unfitted CAD Analysis. Computational Mechanics, Springer Verlag, 2013, pp.39. 〈hal-00812192〉
  • Grégory Legrain, Christophe Geuzaine, J. F. Remacle, Nicolas Moës, P. Cresta, et al.. Numerical simulation of CAD thin structures using the eXtended Finite Element Method and Level Sets. Finite Elements in Analysis and Design, Elsevier, 2013, 77, pp.40-58. 〈10.1016/j.finel.2013.08.007〉. 〈hal-01007128〉
  • Grégory Legrain, Nicolas Chevaugeon, Kristell Dréau. High Order X-FEM and Levelsets for Complex Microstructures: Uncoupling Geometry and Approximation. Computer Methods in Applied Mechanics and Engineering, Elsevier, 2012. 〈hal-00703239〉
  • Frédéric Dufour, Grégory Legrain, Gilles Pijaudier-Cabot, Antonio Huerta. Estimation of crack opening from a two-dimensional continuum-based finite element computation. International Journal for Numerical and Analytical Methods in Geomechanics, Wiley, 2012, 36 (16), pp.1813-1830. 〈10.1002/nag.1097〉. 〈hal-00854615〉
  • Wei-Dong Lian, Grégory Legrain, Patrice Cartraud. Image-based computational homogenization and localization: comparison between X-FEM/levelset and voxel-based approaches. Computational Mechanics, Springer Verlag, 2012, 〈10.1007/s00466-012-0723-9〉. 〈hal-00703243〉
  • Grégory Legrain, Patrice Cartraud, Irina Perreard, Nicolas Moës. An X-FEM and Level Set computational approach for image-based modeling. Application to homogenization.. International Journal for Numerical Methods in Engineering, Wiley, 2010, pp.0. 〈hal-00526589〉
  • Hajer Lamari, Amine Ammar, Patrice Cartraud, Grégory Legrain, Francisco Chinesta, et al.. Routes for Efficient Computational Homogenization of Nonlinear Materials Using the Proper Generalized Decompositions. Archives of Computational Methods in Engineering, Springer Verlag, 2010, 17 (4), pp.373-391. 〈10.1007/s11831-010-9051-4〉. 〈hal-01528268〉
  • Grégory Legrain, Raphaël Allais, Patrice Cartraud. On the use of the eXtended Finite Element Method with Quatree/Octree meshes. International Journal for Numerical Methods in Engineering, Wiley, 2010, pp.0. 〈hal-00520034〉
  • Grégory Legrain, Nicolas Moës, Antonio Huerta. Stability of incompressible formulations enriched with X-FEM. Computer Methods in Applied Mechanics and Engineering, Elsevier, 2008, 197 (21 24), pp.1835-1849. 〈10.1016/j.cma.2007.08.032〉. 〈hal-01007317〉
  • Grégory Legrain, Nicolas Moës, Erwan Verron. Robust and direct evaluation of J(2) in linear elastic fracture mechanics with the X-FEM. International Journal for Numerical Methods in Engineering, Wiley, 2008, 76 (10), pp.1471-1488. 〈10.1002/nme.2366〉. 〈hal-01007266〉
  • Grégory Legrain, Nicolas Moës, Antonio Huerta. Etude de la stabilité d'une formulation incompressible traitée par X-FEM. Revue Européenne des Elements Finis, numéro spécial Giens 2005, 2006, 15, pp.257-268. 〈hal-01006812〉
  • Grégory Legrain, Nicolas Moes, Erwan Verron. Stress analysis around crack tips in finite strain problems using the eXtended finite element method. International Journal for Numerical Methods in Engineering, Wiley, 2005, 63 (2), pp.290 - 314. 〈10.1002/nme.1291〉. 〈hal-00496953〉

Communication dans un congrès32 documents

  • Pierre Gosselet, Jean-Charles Passieux, Anthony Nouy, Grégory Legrain, Florent Pled, et al.. Contributions académiques à l'ANR ICARE. Conférence NAFEMS, Jun 2016, Paris, France. 〈https://www.nafems.org/2016/france/〉. 〈hal-01349798〉
  • Grégory Legrain, Nicolas Moes. An efficient and accurate integration scheme for fictitious domain methods based on level-sets and anisotropic meshing. 13th U.S. National Congress on Computational Mechanics (USNCCM13), Jul 2015, San Diego, United States. 〈hal-01317687〉
  • Grégory Legrain, Nicolas Moes. Résolution de problèmes quasi-singuliers avec la méthode X-FEM. 12e Colloque national en calcul des structures, May 2015, Giens, France. CSMA 2015, 2015, 〈https://csma2015.ec-nantes.fr/〉. 〈hal-01515067〉
  • Grégory Legrain, Nicolas Moes. Resolution strategies for nearly singular solutions using non-conforming high-order grids. Sixth International Workshop on High-Order Finite Element and Isogeometric Methods (HOFEIM 2014), Jul 2014, Frauenchiemsee Island, Germany. 〈hal-01317664〉
  • Abdelghani Matine, Nicolas Boyard, Yvon Jarny, Grégory Legrain, Patrice Cartraud. “Estimation of effective thermal properties within heterogeneous periodic media according to a multi-scale approach. Edge effect analysis. International Conference on Inverse Problems in Engineering, Nov 2014, Kyoto, Japan. 〈hal-01317668〉
  • Grégory Legrain, Nicolas Moes. High-order X-FEM to handle geometrical details : Improved convergence for quasi-singular solutions. 11th World concgress on computational mechanics, Jul 2014, Barcelona, Spain. 11th World concgress on computational mechanics. 〈hal-01317655〉
  • Abdelghani Matine, Nicolas Boyard, Yvon Jarny, Grégory Legrain, Patrice Cartraud. Characterization of the thermal properties of composite materials : a space-time homogenization approach. 16th annual ESAFORM Conference on Material Forming, Apr 2013, Aveiro, Portugal. 16th annual ESAFORM Conference on Material Forming. 〈hal-01317652〉
  • Loïc Giraldi, Anthony Nouy, Grégory Legrain. Hierarchical low-rank approximation of tensors by successive rank one corrections for preconditioning and solving high dimensional linear systems. 2nd ECCOMAS Young Investigators Conference (YIC 2013), Sep 2013, Bordeaux, France. 〈hal-00855883〉
  • Grégory Legrain, Nicolas Moës. Treatment of blunt corners with the X-FEM. XFEM 2013, 2013, Lyon, France. 〈hal-01009070〉
  • Grégory Legrain, Patrice Cartraud, Wei Dong Lian. An integrated approach for image-based computation based on the X-FEM: Accuracy and high-order approximation.. 6th EUROPEAN CONGRESS ON COMPUTATIONAL METHODS IN APPLIED SCIENCES AND ENGINEERING (ECCOMAS 2012), 2012, Vienna, Austria. 〈hal-01007862〉
  • Patrice Cartraud, Grégory Legrain, Wei Dong Lian. An X-FEM and level set approach for image-based computational homogenization. Euromech 537 - Multi-scale Computational Homogenization of Heterogeneous Structures and Materials, 2012, Marne-la-Vallée, France. 〈hal-01007868〉
  • Nicolas Chevaugeon, Grégory Legrain. High-order X-FEM for image-based computations. 6th EUROPEAN CONGRESS ON COMPUTATIONAL METHODS IN APPLIED SCIENCES AND ENGINEERING (ECCOMAS 2012), 2012, Vienna, Austria. 〈hal-01008256〉
  • Anthony Nouy, Patrice Cartraud, Loïc Giraldi, Grégory Legrain. Tensor approximation methods for multiscale stochastic analysis of materials. Euromech Colloquium 537, 2012, MArne-La-Vallée, France. 〈hal-01009002〉
  • Loïc Giraldi, Anthony Nouy, Grégory Legrain, Patrice Cartraud. Tensor approximation methods for image-based computations.. ECCOMAS, 2012, Vienne, Austria. 〈hal-01009001〉
  • Grégory Legrain, Nicolas Chevaugeon, Kristell Dréau. High order eXtended Finite Element Method and Level Sets: Uncoupling geometry and approximation. International Conference on Extended Finite Element Methods - XFEM 2011, 2011, Cardiff, United Kingdom. 〈hal-01008250〉
  • Grégory Legrain, Nicolas Chevaugeon, Kristell Dréau. Simulations de géométries complexes avec X-FEM et Level-Sets : Séparation de l'approximation et de la géométrie. 10e colloque national en calcul des structures, May 2011, Giens, France. pp.Clé USB, 2011. 〈hal-00592785〉
  • Loïc Giraldi, Grégory Legrain, Anthony Nouy, Patrice Cartraud. Méthode PGD pour l'homogénéisation numérique à partir d'images de haute résolution.. 10e colloque national en calcul des structures, May 2011, Giens, France. pp.Clé USB, 2011. 〈hal-00592788〉
  • Raphaël Allais, Grégory Legrain, Patrice Cartraud. Comparison of two approaches for error estimation with X-FEM. IV European Congress on Computational Mechanics (ECCM IV), 2010, Paris, France. 〈hal-01007996〉
  • Wei Dong Lian, Grégory Legrain, Patrice Cartraud. Comparison of two Computational Approaches for Image-Based Micromechanical Modeling. IV European Congress on Computational Mechanics (ECCM IV), 2010, Paris, France. 〈hal-01007997〉
  • Hajer Lamari, Amine Ammar, Patrice Cartraud, Francisco Chinesta, Frédéric Jacquemin, et al.. Advanced Non-Linear Homogenization: Speeding-up Concurrent Simulations. 4th European Conference on Computational Mechanics, 2010, Paris, France. 〈hal-01007840〉
  • Loïc Giraldi, Grégory Legrain, Patrice Cartraud, Francisco Chinesta. Application of the PGD to the Recursive Homogenization of Materials with random Microstructures. Journées Annuelles de la Société Française de Métallurgie et de Matériaux, 2010, Paris, France. 〈hal-01007899〉
  • Frédéric Dufour, Gilles Pijaudier-Cabot, Grégory Legrain. Nonlocal damage based failure models, extraction of crack opening and transition to fracture. EURO-C 2010 - Computational Modelling of Concrete Structures, 2010, Schladming, Austria. 〈hal-01008535〉
  • Hajer Lamari, Amine Ammar, Patrice Cartraud, Francisco Chinesta, Frédéric Jacquemin, et al.. Recent Advances in Material Homogenization. 13th ESAFORM Conference on Material Forming, 2010, Brechia, Italy. 〈hal-01008739〉
  • Patrice Cartraud, Grégory Legrain, Raphaël Allais, Nicolas Moës. Image-Based Computational Homogenization using Level Sets and X-FEM. 2nd International Fraunhofer Workshop -3D Imaging, Analysis, Modelling and Simulation of Macroscopic Properties, 2008, Kaiserslautern, Germany. 〈hal-01008288〉
  • Patrice Cartraud, Irina Ionescu, Grégory Legrain, Nicolas Moës. Image-Based Computational Homogenization of Random Materials using Level Sets and X-FEM. 8th World Congress on Computational Mechanics (WCCM8), 5th European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS 2008), 2008, Venice, Italy. 〈hal-01008287〉
  • Grégory Legrain, Nicolas Moës, Erwan Verron. Robust and Direct Evaluation of J2 in Linear Elastic Fracture Mechanics with the X-FEM. WCCM - Eccomas 2008, 2008, Venice, France. 〈hal-01008855〉
  • Antonio Huerta, Nicolas Moës, Grégory Legrain, E. Sala-Lardies. Mixed X-FEM formulation for incompressible problems. 10th ESAFORM conference on material forming, 2007, Zaragoza, Spain. 〈hal-01008441〉
  • Grégory Legrain, Nicolas Moës, Erwan Verron. Crack propagation in hyperelastic media using X-FEM. CFRAC 2007 International Conference on Computational Fracture and Failure of Materials and Structures, 2007, Nantes, France. 〈hal-01008042〉
  • Grégory Legrain, Frédéric Dufour, Antonio Huerta, Gilles Pijaudier-Cabot. Extraction of Crack Opening from a Nonlocal Damage Field. COMPLAS 2007, 2007, Barcelone, Spain. 〈hal-01008217〉
  • Grégory Legrain, Erwan Verron, Nicolas Moës. Crack propagation with X-FEM using material forces. 6th European Solid Mechanics Conference (ESMC2006), 2006, Budapest, Hungary. 〈hal-01008043〉
  • Grégory Legrain, Nicolas Moës, Erwan Verron. Etude des forts gradients de contraintes en pointe de fissure dans un élastomère. Journée Thématique SF2M Ouest 2004, 2004, Ecole Centrale de Nantes, France. 〈hal-01008160〉
  • Grégory Legrain, Nicolas Moës, Erwan Verron. Fracture with large deformation using X-FEM. Fourth European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS), 2004, Jyväskylä, Finland. 〈hal-01008234〉

Thèse1 document

  • Grégory Legrain. Extension de l'approche X-FEM aux grandes transformations pour la fissuration des milieux hyperélastiques. Matériaux. Ecole Centrale de Nantes (ECN); Université de Nantes, 2006. Français. 〈tel-00495847v2〉