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Olivier BONNEFOY

  • Email bonnefoy@mines-stetienne.fr
  • Phone +33 4 77 49 97 43
  • Capacity Enseignant-chercheur, directeur adjoint du centre SPIN
  • Centre Centre for Chemical Engineering -
  • Department Powder Science and Technology (PMMG)
  • Site Campus of Saint-Étienne
    158, cours Fauriel, Saint-Étienne
  • Office C2-23
  • Responsibilities and Duties

    I am professor in Chemical Engineering, with teaching and research activities, since 2005 at the Ecole des Mines de Saint-Etienne. I work in the SPIN centre on Powder and Grains Science and Technology. I am responsible for the Common Laboratory with Orano and the coordinator of the Erasmus Mundus master MULTIPHASE. Open to any collaboration.

    Personal home page : https://www.emse.fr/~bonnefoy
    Centre SPIN : https://www.mines-stetienne.fr/spin/
    Master MULTIPHASE : https://www.multiphase-master.eu/

  • Research Topics

    Powders and grains : flows, mixing and segregation, densification by vibrations or compression
    Suspensions : concentrated suspensions rheology, de-agglomeration (ultrasounds, shear), fluidization,
    Particle design: atomization
    Porous media: reacting flows, imbibition by elastomers,
    Numerical modelling by Lagrangian methods: Discrete Element Methods, Smoothed Particles Hydrodynamics, Lattice Boltzmann Method

  • Teaching Areas

    Thermodynamics and heat engines
    Fluid mechanics, dynamical systems and hydrodynamic instabilities
    Lattice Boltzmann Method (theory and programming)
    Characterization and rheology of granular matter

  • Biography

    1998-2000 : chemical engineer for ExxonMobil
    2000-2005 : PhD work on gas hydrates in porous media
    2005-2017: assistant professor
    2017-current : full professor

  • Education

    1996 : Engineer of the Ecole des Mines Saint-Etienne
    1996 : Dipl.-Ing in Verfahrenstechnik of the Technical University of Berlin
    2005 : PhD in Chemical Engineering
    2014 : Habilitation in Chemical Engineering

  • Main Publications

    BOOK :

    THOMAS G. & BONNEFOY O., “Poudres et mélanges granulaires : Modélisation, propriétés, procédés”, Ed. Ellipses, 2012

    ARTICLES :

    GEARA S., MARTIN S., ADAMI S., PETRY W. , ALLENOU J., STEPNIK B., BONNEFOY O.
    A new SPH density formulation for 3D free-surface flows, Computers & Fluids (2022) 232:105193

    LOUATI H., BEDNAREK X., MARTIN S. NDIAYE A., BONNEFOY O.
    Qualitative and Quantitative DEM analysis of cohesive granular material behaviour in FT4 shear tester, Chemical Engineering Research and Design (2019) 148:155-163

    BEDNAREK X., MARTIN S., NDIAYE A., PERES V., BONNEFOY O.
    Extrapolation of DEM simulations to large time scale application to the mixing of powder in a conical screw mixer, Chemical Engineering Science (2019) 197:223-234

    EVANGELISTA B., ARLABOSSE P. GOVIN A., SALVADOR S., BONNEFOY O., DIRION J.-L.
    Reactor scale study of self-heating and self-ignition of torrefied wood in contact with oxygen, Fuel (2018) 214:590-596

    OLMOS L., CHAIX J.M., NADLER S., BONNEFOY O., GELET J.-L., THOMAS G.
    Study by X-ray microtomography of the horizontal vibration
    effects on sand densification, Granular Matter (2016) 18:61

    NADLER S., BONNEFOY O., CHAIX J.M., THOMAS G., GELET J.L.
    Parametric study of horizontally vibrated grain packings – Comparison between Discrete Element Method and Experimental results
    European Journal of Physics E, 34(7) N°66 (2011)

    RAIHANE A., BONNEFOY O., CHAIX J.M., GELET J.L., THOMAS G.
    Analysis of the densification of a vibrated sand packing
    Powder Technology 208 (2) 289-295 (2011)

    SOURIOU D., GOEURIOT P., BONNEFOY O., THOMAS G., DORÉ F.
    Influence of the formulation of an alumina powder on compaction
    Powder Technology 190 (1-2) 152–159 (2009)

    RAIHANE A., BONNEFOY O., GELET J.-L., CHAIX J.-M., THOMAS G.
    Experimental study of a 3D dry granular medium submitted to horizontal shaking
    Powder Technology. 190 (1-2), 252-257 (2009)

    BELHAOUA A., DEBAYLE J., RAIHANE A., BONNEFOY O., GELET J.-L., CHAIX J.-M., THOMAS G.
    Velocity field computation within vibrated granular structures using an optical flow based multiscale image analysis method
    Image Anal Stereol. 28(3), 35-43 (2009)

    SOURIOU D., GOEURIOT P., BONNEFOY O., THOMAS G., DORÉ F.
    Formulation of an alumina powder and high velocity compaction forming: influence on compact properties
    Mécanique & Industries 9(5), 429-435 (2008)

    GUILLEMIN J.-P., BRUNET L., BONNEFOY O., THOMAS G.
    Development of a new mixing rheometer for studying rheological behaviour of concentrated energetic suspensions
    Journal of Non-Newtonian Fluid Mechanics 151(1-3), 136-144, (2008)

    GUILLEMIN J.-P. , BRUNET L., BONNEFOY O., THOMAS G.
    A Flow Time Model for Melt-Cast Insensitive Explosive Process
    Propellants, Explosives, Pyrotechnics 32(3), 261-266 (2007)

    GUILLEMIN J-P., BRUNET L., BONNEFOY O., THOMAS G
    Application d’un modèle de viscosité à la coulée d’explosifs. Modélisation du temps de coulée
    Rhéologie 10, 40-48 (2006)

    BONNEFOY O., GRUY F., HERRI J.-M.
    Van der Waals interactions in systems involving gas hydrates
    Fluid Phase Equilibria 231(2), 176-187, (2005)

    BONNEFOY O., GRUY F., HERRI J.-M.
    A priori calculation of the refractive index of some simple gas hydrates of structures I and II
    Materials Chemistry and Physics 89(2-3), 336-344, (2005)

74 documents

  • Journal articles22 document

    • Sandra Geara, Sylvain Martin, S. Adami, J. Allenou, B. Stepnik, et al.. SPH 3D simulation of jet break-up driven by external vibrations. Computational Particle Mechanics, 2023, ⟨10.1007/s40571-023-00624-8⟩. ⟨emse-04158630⟩
    • Clara Haydar, Sylvain Martin, Olivier Bonnefoy. Long time extrapolation of DEM with heat conduction in a moving granular medium. Chemical Engineering Science, 2023, 277, pp.118815. ⟨10.1016/j.ces.2023.118815⟩. ⟨emse-04093980⟩
    • Sandra Geara, Sylvain Martin, S. Adami, W. Petry, J. Allenou, et al.. A new SPH density formulation for 3D free-surface flows. Computers and Fluids, 2022, 232, pp.105193. ⟨10.1016/j.compfluid.2021.105193⟩. ⟨emse-03561813⟩
    • Nikhil Tembhurnikar, Jean-Charles Majesté, Sylvain Martin, Olivier Bonnefoy. Characterization of the incorporation of a granular medium into elastomer matrices during mixing process. Journal of Applied Polymer Science, In press, pp.52280. ⟨10.1002/app.52280⟩. ⟨emse-03592923⟩
    • Xavier Bednarek, Sylvain Martin, Abibadou Ndiaye, Véronique Peres, Olivier Bonnefoy. Extrapolation of DEM simulations to large time scale. Application to the mixing of powder in a conical screw mixer. Chemical Engineering Science, 2019, 197, pp.223-234. ⟨10.1016/j.ces.2018.12.022⟩. ⟨hal-01968891⟩
    • Haithem Louati, Xavier Bednarek, Sylvain Martin, Abibatou Ndiaye, Olivier Bonnefoy. Qualitative and quantitative DEM analysis of cohesive granular material behaviour in FT4 shear tester. Chemical Engineering Research and Design, 2019, 148, pp.155 à 163. ⟨10.1016/j.cherd.2019.05.059⟩. ⟨hal-02163782⟩
    • Brieuc Evangelista, Patricia Arlabosse, Alexandre Govin, Sylvain Salvador, Olivier Bonnefoy, et al.. Reactor scale study of self-heating and self-ignition of torrefied wood in contact with oxygen. Fuel, 2018, 214, pp.590-596. ⟨10.1016/j.fuel.2017.11.048⟩. ⟨hal-01650705⟩
    • L. Olmos, Jean-Marc Chaix, Sébastien Nadler, Olivier Bonnefoy, Jean-Louis Gelet, et al.. Study by X-Ray microtomography of the horizontal vibration effects on sand densification. Granular Matter, 2016, 18 (3), pp.61. ⟨10.1007/s10035-016-0661-x⟩. ⟨hal-01346078⟩
    • Ahmed Raihane, Olivier Bonnefoy, Jean-Marc Chaix, Jean-Louis Gelet, Gérard Thomas. Analysis of the densification of a vibrated sand packing. Powder Technology, 2011, 208 (2), pp.289-295. ⟨10.1016/j.powtec.2010.08.018⟩. ⟨hal-00578354⟩
    • Sébastien Nadler, Olivier Bonnefoy, Jean-Marc Chaix, G. Thomas, Jean-Louis Gelet. Parametric study of horizontally vibrated grain packings - Comparison between Discrete Element Method and experimental results. European Physical Journal E: Soft matter and biological physics, 2011, 34 (6), pp.66. ⟨10.1140/epje/i2011-11066-y⟩. ⟨hal-00608038⟩
    • David Souriou, Patrice Goeuriot, Olivier Bonnefoy, Gérard Thomas, Florence Doré. Influence of the formulation of an alumina powder on compaction. Powder Technology, 2009, 190 (1-2), pp.152-159. ⟨10.1016/j.powtec.2008.04.074⟩. ⟨hal-00410221⟩
    • Johan Debayle, Ahmed Raihane, Abdelkrim Belhaoua, Olivier Bonnefoy, Gérard Thomas, et al.. Velocity field computation in vibrated granular media using an optical flow based multiscale image analysis method. Image Analysis & Stereology, 2009, 28, pp.35-43. ⟨hal-00379921⟩
    • Ahmed Raihane, Olivier Bonnefoy, Jean-Louis Gelet, Jean-Marc Chaix, Gérard Thomas. Experimental study of a 3D dry granular medium submitted to horizontal shaking. Powder Technology, 2009, 190 (1-2), pp.252-257. ⟨10.1016/j.powtec.2008.04.068⟩. ⟨hal-00410199⟩
    • David Souriou, Patrice Goeuriot, Olivier Bonnefoy, Gérard Thomas, Florence Doré. Formulation d'une poudre d'alumine et formation par compaction grande vitesse : influence sur les propriétés du comprimé - Formulation of an alumina powder and high velocity compaction forming: influence on compact properties.. Mechanics & Industry, 2008, 9 (5), pp.429 - 435. ⟨10.1051/meca/2009006⟩. ⟨hal-00517784⟩
    • Jean-Philippe Guillemin, Olivier Bonnefoy. La nano-intégration : un besoin d'adaptation des procédés de fabrication actuels. Lettre Techniques de l'Ingénieur, 2008, 9, pp.10-11. ⟨emse-00518062⟩
    • Jean-Philippe Guillemin, Yves Ménard, Luc Brunet, Olivier Bonnefoy, Gérard Thomas. Development of a new mixing rheometer for studying rheological behaviour of concentrated energetic suspensions. Journal of Non-Newtonian Fluid Mechanics, 2008, 151 (1-3), pp.136-144. ⟨10.1016/j.jnnfm.2007.12.007⟩. ⟨emse-00495289⟩
    • Jean-Philippe Guillemin, Luc Brunet, Olivier Bonnefoy, Gérard Thomas. A Flow Time Model for Melt-Cast Insensitive Explosive Process. Propellants Explosives Pyrotechnics, 2007, 32 (3), pp.261-266. ⟨10.1002/prep.200700028⟩. ⟨hal-00518103⟩
    • Jean-Philippe Guillemin, A. Werckerle, L. Brunet, Olivier Bonnefoy, Gérard Thomas. Application d'un modèle de viscosité à la coulée d'explosifs : Modélisation du temps de coulée.. Rhéologie, 2006, 10, pp.40-48. ⟨hal-00127198⟩
    • Olivier Bonnefoy, Frédéric Gruy, Jean-Michel Herri. A priori calculation of the refractive index of some simple gas hydrates of structures I and II. Materials Chemistry and Physics, 2005, 89 (2-3), pp.336-344. ⟨10.1016/j.matchemphys.2004.09.007⟩. ⟨emse-00497662⟩
    • Olivier Bonnefoy, Frédéric Gruy, Jean-Michel Herri. A-priori calculation of the refractive index of some simple gas hydrates of structures I and II. Materials Chemistry and Physics, 2005, 89(2-3), pp.336. ⟨10.1016/j.matchemphys.2004.09.007⟩. ⟨hal-00125048⟩
    • Olivier Bonnefoy, Frédéric Gruy, Jean-Michel Herri. Van der Waals interactions in systems involving gas hydrates. Fluid Phase Equilibria, 2005, 231 (2), pp.176-187. ⟨10.1016/j.fluid.2005.02.004⟩. ⟨emse-00497660⟩
    • Olivier Bonnefoy, Frédéric Gruy, Jean-Michel Herri. Van der Waals interactions in systems involving gas hydrates.. Fluid Phase Equilibria, 2005, 231(2), pp.176. ⟨10.1016/j.fluid.2005.02.004⟩. ⟨hal-00125056⟩

  • Conference papers45 document

    • P. Pizette, Olivier Bonnefoy, Cendrine Gatumel, Henri Berthiaux, J. Lopez-Cuesta. Modélisation des Procédés Granulaires. Colloque IMT - Modélisation, contrôle et optimisation des procédés : de la donnée au jumeau numérique, Mar 2023, Mines Saint-Étienne, France. ⟨hal-04136197⟩
    • Sandra Geara, S. Adami, Sylvain Martin, Olivier Bonnefoy, J. Allenou, et al.. Comparison of interface models to account for surface tension in SPH method. PARTICLES 2019 - VI International Conference on Particle-Based Methods. Fundamentals and Applications, International Center for Numerical Methods in Engineering (CIMNE); Universitat Politècnica de Catalunya (UPC); European Community on Computational Methods in Applied Sciences (ECCOMAS); International Association for Computational Mechanics (IACM), Oct 2019, Barcelona, Spain. pp.714 à 725. ⟨emse-02442782⟩
    • Andrea Valentini, Sylvain Martin, Olivier Bonnefoy. Synthesis of spherical particles with a targeted size distribution. 8th World Congress on Particle Technology (WCPT 8), Particulate Solid Research, Inc. (PSRI); AIChE (American Institute of Chemical Engineers), Apr 2018, Orlando, United States. paper 134d. ⟨hal-01813375⟩
    • Haithem Louati, Xavier Bednarek, Sylvain Martin, Abibadou Ndiaye, Olivier Bonnefoy. Analysis of mixing dynamics of powders in conical screw mixer using DEM simulation. 8th World Congress on Particle Technology (WCPT 8), Particulate Solid Research, Inc. (PSRI); AIChE (American Institute of Chemical Engineers), Apr 2018, Orlando, United States. paper 65c. ⟨hal-01807011⟩
    • Xavier Bednarek, Sylvain Martin, Abibatou Ndiaye, Véronique Peres, Olivier Bonnefoy. Calibration of DEM parameters on shear test experiments using Kriging method. Powders and Grains 2017 – 8th International Conference on Micromechanics on Granular Media, LMGC, CNRS, Université de Montpellier; IATE, INRA, Montpellier, Jul 2017, Montpellier, France. ⟨10.1051/epjconf/201714015016⟩. ⟨hal-01570602⟩
    • Xavier Just, Margie P. Olbinado, Pierre Lhuissier, Jean-Louis Gelet, Alexander Rack, et al.. Etude par radiographie ultrarapide des transformations et du rôle des matériaux lors du fonctionnement d’un fusible. Journées Annuelles SF2M - JA 2017 "Matériaux, Microstructures et Fonctionnalités" , Section Sud-Est de la SF2M ; Laboratoire MATEIS de l’INSA de Lyon; Laboratoires CETHIL de l’INSA de Lyon; Membres de la fédération d’ingénierie Lyon Saint Etienne (Ingélyse); Membres de l’Institut Carnot I@L., Oct 2017, Lyon, France. ⟨hal-01538109⟩
    • Jean-Louis Gelet, Jean-Marc Chaix, Xavier Just, Pierre Lhuissier, Gérard Thomas, et al.. Observation of Arcing inside a Fuse under VSI Short Circuit Conditions using 5.106 Frames per Sec. X-ray Imaging. COSYS-DC 2017 - International Conference on Components and SYStems for DC Grid, APIME, Mar 2017, Grenoble, France. ⟨hal-01505692⟩
    • Brieuc Evangelista, Patricia Arlabosse, Alexandre Govin, Sylvain Salvador, Olivier Bonnefoy, et al.. Étude expérimentale et numérique de la réaction entre le bois torréfié et l’oxygène à faible temperature. SFGP 2017 - 16ème Congrès de la Société Française de Génie des Procédés, SFGP (Société Française de Génie des Procédés); EFCE ( European Federation of Chemical Engineering); LRGP (Laboratoire Réactions et Génie des Procédés); CNRS (Centre National de la Recherche Scientifique); Université de Lorraine, Jul 2017, Nancy, France. ⟨hal-01643777⟩
    • Brieuc Evangelista, Olivier Bonnefoy, Alexandre Govin, Patricia Arlabosse, Sylvain Salvador, et al.. Experimental study of self-heating phenomenon at the reactor-scale. Safety assessment of a fixed-bed filled with torrefied wood chips. 10th World Congress of Chemical Engineering- WCCE10, Anque; Enginyers Industrials de catalunya; SEQUI; A IQS, Oct 2017, Barcelone, France. pp.2448. ⟨hal-01720397⟩
    • Maxym Burel, Sylvain Martin, Olivier Bonnefoy. Jamming/flowing transition of non-Brownian particles suspended in a iso-density fluid flowing in a 2D rectangular duct. Powders and Grains 2017 – 8th International Conference on Micromechanics on Granular Media, LMGC, CNRS, Université de Montpellier; IATE, INRA, Montpellier, Jul 2017, Montpellier, France. ⟨10.1051/epjconf/201714003086⟩. ⟨hal-01570734⟩
    • Jean-Louis Gelet, Jean-Marc Chaix, Xavier Just, Pierre Lhuissier, Gérard Thomas, et al.. Observation par imagerie de rayons X à 106 d'images par seconde de l'arc dans un fusible opérant sous décharge de condensateur. 13ème édition du Colloque sur les Arcs Electriques (CAE XIII) - 3ème Workshop Arcs et Contacts Electriques (ACE 2017), Institut Jean Lamour (UMR CNRS - Université de Lorraine), Mar 2017, Vandoeuvre-lès-Nancy, France. ⟨hal-01504879⟩
    • Brieuc Evangelista, Patricia Arlabosse, Alexandre Govin, Sylvain Salvador, Olivier Bonnefoy, et al.. Études expérimentales et modélisation du phénomène d’auto-échauffement, application au refroidissement de plaquettes de bois torréfiées.. Journée Scientifique du CODEGEPRA 2016, CODEGEPRA Comité de DÉveloppement du GÉnie des Procédés en Rhône-Alpes Auvergne, Nov 2016, Saint-Martin d'Hères, France. ⟨hal-01429734⟩
    • Brieuc Evangelista, Patricia Arlabosse, Elsa Weiss-Hortala, Alexandre Govin, Sylvain Salvador, et al.. Experimental study of self-heating phenomena during torrefaction of spherical wood particles. 6th International Conférence on Engineering for Waste and Biomass valorisation - WasteEng2016, WasteEng conference series; Mines Albi-Carnaux, May 2016, Albi, France. ⟨hal-01331853⟩
    • Maxym Burel, Olivier Bonnefoy. Jamming/flowing transition of a non Brownian suspension.. Crossroad of the Particle Science and Technology Joint conference of the 5th UK-China and 13th UK Particle Technology Forum, Université de Leeds, Jul 2015, Leeds, United Kingdom. ⟨emse-01212198⟩
    • Sylvain Martin, Olivier Bonnefoy. Numerical simulation of reactive flow in granular media using a LBM approach. Application to the study of biomass torrefaction.. IV International Conference on Particle-Based Methods - Particles 2015, International Center for Numerical Methods in Engineering ( CIMNE ); Universitat Politècnica de Catalunya (UPC); Eurapean Community on Computational Methods in Applied Sciences (ECCOMAS); international Assiciation for Computational Mechanics (IACM); European Research Council (ERC); Computational Particle Mechanics, a Springer Journal, Sep 2015, Barcelone, Spain. ⟨emse-01245465⟩
    • Xavier Just, Jean-Marc Chaix, Rémy Dendievel, Olivier Bonnefoy, Gérard Thomas, et al.. Study of interaction between high energy discharge and granular field in a confined environment for fuses applications. International Conference on Lightning & Static Electricity (ICOLSE 2015), the International Conference on Lightning & Static Electricity, Sep 2015, Toulouse, France. pp.57 (7 .) (1), ⟨10.1049/ic.2015.0204⟩. ⟨hal-02011092⟩
    • Maxym Burel, Olivier Bonnefoy. Transition blocage/écoulement d'une suspension non brownienne dans un liquide. Colloque STPMF 2015, LRGP (Laboratoire Réactions et Génie des Procédés); LEM3 (Laboratoire d'Etudes des Microstructures et de Mécanique des Matériaux); LIBio (Laboratoire d'Ingénierie des Biomolécules); IJL (Institut Jean Lamour), Apr 2015, Nancy, France. pp.N°Article 1 à 8. ⟨emse-01144014⟩
    • Olivier Bonnefoy, Alexandre Govin, Mélanie Almendros, Elena Sanz, Willi Nastoll, et al.. Synthesis and Fluidization of Wood Powders Application to biofuel production. 7Th World Congress on Particucle Technology, May 2014, Pékin, China. ⟨hal-01052666⟩
    • Innocent Boudimbou, Edith Peuvrel-Disdier, Timothée Dumas, Olivier Bonnefoy, Philippe Grosseau, et al.. Macrodispersion of amorphous precipitated silica micropearls in an elastomer matrix: Role of silica intrinsic parameters. Conférence Internationale du Caoutchouc / International Rubber conference, IRC 2013, Mar 2013, Vitry-sur-Seine, France. ⟨hal-00847108⟩
    • Philippe Grosseau, Timothée Dumas, Olivier Bonnefoy, Lionel Barriquand, Laurent Guy, et al.. Internal structure and fragmentation kinetics of silica granules. POWDERS AND GRAINS 2013, Jul 2013, Sydney, Australia. pp.1007, ⟨10.1063/1.4812104⟩. ⟨hal-00847074⟩
    • Olivier Bonnefoy, Sébastien Nadler, Gérard Thomas, Jean-Marc Chaix, Jean-Louis Gelet. Etude de procédés de compaction par vibrations horizontales en milieu ouvert ou fermé - Approches expérimentales et numériques.. XIV° Congrès de la Société Française de Génie des Procédés, Oct 2013, Lyon, France. pp.No 496. ⟨hal-00875473⟩
    • Innocent Boudimbou, Edith Peuvrel-Disdier, Timothée Dumas, Olivier Bonnefoy, Philippe Grosseau, et al.. Macrodispersion of amorphous precipitated silica micropearls in an elastomer matrix: Role of silica intrinsic parameters. International Rubber Conference 2013, , Mar 2013, Paris, France. 1p. ⟨hal-01502187⟩
    • Mélanie Almendros, Henri Besset, Olivier Bonnefoy, Vincent Bracco, Alexandre Govin, et al.. Fluidization and rheological approaches for characterization of wood biomass flowability. MAPI (Multiscale Approaches for Process Innovation, Jan 2012, Lyon, France. ⟨hal-00667275⟩
    • Innocent Boudimbou, Edith Peuvrel-Disdier, Frédéric Vincent, Jean-Charles Majesté, Christian Carrot, et al.. Mechanisms of dispersion in silica filled elastomers: Input of different approaches. 10th Rubber Fall Colloquium, Nov 2012, Hannovre, Germany. 1p. ⟨hal-01500799⟩
    • Mélanie Almendros, Olivier Bonnefoy, Alexandre Govin, Willi Nastoll, Elena Sanz, et al.. Rheological and morphological characterization of torrefied wood biomass. International Workshop on Biomass Torrefaction for Energy, Albi, 10 et 11 mai 2012, May 2012, Albi, France. ⟨emse-00723032⟩
    • Timothée Dumas, Olivier Bonnefoy, Gérard Thomas, Sébastien Nebut, Laurent Guy. New methods to analyse fragmentation mechanisms of precipitated silicas. 5th International Workshop on Granulation. Granulation Conference Lausanne, Zwitzerland,, Jun 2011, Lausanne, Switzerland. pp.10. ⟨hal-00616514⟩
    • Mélanie Almendros, Olivier Bonnefoy, Alexandre Govin, Willi Nastoll, Elena Sanz, et al.. Changes on wood powder morphology and flowability due to thermal pretreatment,. XIII° Congrès de la SFGP 2011 Société Française de Génie des Procédés : Des procédés au service du produit au coeur de l'Europe, Nov 2011, Lille, France. pp.N°207. ⟨hal-00658252⟩
    • Mélanie Almendros, Olivier Bonnefoy, Alexandre Govin, Willi Nastoll, Elena Sanz, et al.. Influence of torrefaction treatment on wood powder properties. 19th European Biomass Conference 2011, Jun 2011, Berlin, Germany. pp.1902-1904, ⟨10.5071/19thEUBCE2011-OC8.5⟩. ⟨hal-00667159⟩
    • Sébastien Nadler, Olivier Bonnefoy, Jean-Marc Chaix, Jean-Louis Gelet, Gérard Thomas. Milieu granulaire soumis à des vibrations horizontales : simulations numériques. Journées Annuelles du Groupe Français de la Céramique 2010, Mar 2010, Saint-Etienne, France. Aucune pagination. ⟨hal-00622940⟩
    • Ahmed Raihane, Olivier Bonnefoy, Sébastien Nadler, Jean-Louis Gelet, Jean-Marc Chaix, et al.. Convective Flow in a Horizontally Vibrated 3D Granular Packing. Powders and Grains 2009: 6th International Conference on Micromechanics of Granular Media, Jul 2009, Golden, United States. pp.721-724. ⟨hal-00409723⟩
    • Ahmed Raihane, Olivier Bonnefoy, Jean-Marc Chaix, Jean-Louis Gelet, Gérard Thomas. Analysis of the densification of a vibrated sand packing. STPMF 2009 (Science et Technologie des Poudres et Matériaux Frittés), May 2009, Montpellier, France. ⟨hal-00409785⟩
    • Sébastien Nadler, Olivier Bonnefoy, Jean-Marc Chaix, Ahmed Raihane, Gérard Thomas, et al.. Modelling the influence of process parameters on the densification of granular media under horizontal vibrations.. XII ° Congrès de la Société Française de Génie des Procédés Pour relever les défis industriels du XXI° siècle A la croisée des Sciences et des Cultures, Oct 2009, Marseille, France. pp.P-883. ⟨hal-00425573⟩
    • Sébastien Nadler, Olivier Bonnefoy, Ahmed Raihane, Jean-Marc Chaix, Jean-Louis Gelet, et al.. Numerical Simulation Of Granular Media Under Horizontal Vibrations.. 6th International Conference on Micromechanics of Granular Media, Jul 2009, Golden, Colorado, United States. pp.725-728. ⟨hal-00411051⟩
    • Jean-Philippe Guillemin, Olivier Bonnefoy, Gérard Thomas, L. Brunet, N. Forichon-Chaumet. Emptying time of a tank filled up with explosive paste. Comparison between experimental measurements and predictions based on rheological characterization of the paste. 15th International Congress on Rheology, Aug 2008, Monterey, United States. ⟨hal-00409985⟩
    • Jean-Philippe Guillemin, Luc Brunet, Olivier Bonnefoy, Gérard Thomas. A Flow Time Model for Melt-Cast Insensitive Explosive Process. XI° Congrès de la Société Française de Génie des Procédés. Des réponses industrielles pour une société en mutation., Oct 2007, Saint Etienne, France. pp.ISBN=2-910239-70-5. ⟨hal-00457829⟩
    • Ahmed Raihane, Olivier Bonnefoy, Jean-Louis Gelet, Gérard Thomas, Jean-Marc Chaix. Procédé de densification de sable par vibrations horizontales. Etude expérimentale des mouvements granulaires en géométrie 3D.. XI° Congrès de la Société Française de Génie des Procédés. Des réponses industrielles pour une société en mutation., Oct 2007, Saint Etienne, France. pp.ISBN=2-910239-70-5. ⟨hal-00457925⟩
    • David Souriou, Patrice Goeuriot, Olivier Bonnefoy, Gérard Thomas, Florence Doré. Formulation d'une poudre d'alumine et formation par Compaction Grande Vitesse : influence sur les propriétés du comprimé. XI° Congrès de la Société Française de Génie des Procédés. Des réponses industrielles pour une société en mutation., Oct 2007, Saint Etienne, France. pp.ISBN=2-910239-70-5. ⟨hal-00457578⟩
    • David Souriou, D. Goeuriot, Olivier Bonnefoy, G. Thomas, F. Doré. Compaction dynamique des poudres céramiques : conséquences sur la densification ».. Colloques Matériaux 2006, 2006, Dijon, France. pp.édition sur DVD. ⟨hal-00293710⟩
    • David Souriou, Patrice Goeuriot, Olivier Bonnefoy, Gérard Thomas, Sylvain Drapier, et al.. Comparison of conventional and High Velocity Compaction of alumina powders. 11th International Ceramics Congress and 4th Forum on New Materials, Acireale, Sicily, Italy, June 4-9, 2006, Jun 2006, Acireale, Italy. pp.893-898, ⟨10.4028/www.scientific.net/AST.45.893⟩. ⟨hal-00128232⟩
    • David Souriou, Patrice Goeuriot, Olivier Bonnefoy, Gérard Thomas, Florence Doré. Compaction dynamique des poudres céramiques. Matériaux 2006, Nov 2006, Dijon, France. ⟨hal-00129175⟩
    • David Souriou, Patrice Goeuriot, G. Thomas, Olivier Bonnefoy, Sylvain Drapier, et al.. High Velocity Compaction for ceramic powders. 11th International Ceramics Congress (CIMTEC 2006), Jun 2006, Acireale, Italy. pp.session E6. ⟨hal-00295019⟩
    • Jean-Philippe Guillemin, Peggy Lamy, Gérard Thomas, Olivier Bonnefoy. Micro-Nano : des comportements différents, des procédés à adapter. 8ème CIMATS (Colloque Industriel sur les Matériaux et Traitement de Surface (Nano matériaux, nano composites, nano structures : un point sur la réalité industrielle) 7 et 8 décembre 2005, Dec 2005, Belfort-Montbéliard, France. ⟨hal-00125086⟩
    • Laurent Jeannin, Aude Bayi, Gérard Renard, Olivier Bonnefoy, Jean-Michel Herri. Formation & Dissociation of Methane Hydrates in Sediments. Part II : Numerical modelling. 4th International Conference on Gas Hydrates, May 2002, Yokohama, Japan. ⟨hal-00126016⟩
    • Olivier Bonnefoy, Jean-Michel Herri. Formation & Dissociation of Methane Hydrates in Sediments.Part I : A New Experimental Set-up for Measurements and Modelling at the Core Scale. 4th International Conference on Gas Hydrates, May 2002, Yokohama, Japan. ⟨hal-00126018⟩
    • Olivier Bonnefoy, Jean-Michel Herri, Jean-Pierre Monfort, Pierre Henry, Philippe Bernada, et al.. A new experimental set-up for the study of the formation and dissociation of methane hydrate in sediments. EAGE 63rd Conference and Exhibition, Jun 2001, Amsterdam, Netherlands. ⟨hal-00846009⟩

  • Poster communications3 document

    • Sandra Geara, Sylvain Martin, Olivier Bonnefoy. Simulation par la méthode SPH du problème de Stefan : conduction thermique et changement de phase solide/liquide. Journée Scientifique 2018 du Codegepra, Nov 2018, Saint-Etienne, France. , Journée scientifique du CODEGEPRA - Le Génie des Procédés en Rhône-Alpes Auvergne, pp.P21. ⟨hal-01980052⟩
    • Maxym Burel, Olivier Bonnefoy, Philippe Grosseau. Transition blocage/écoulement d’une suspension non brownienne dans un liquide. Journée Scientifique du CODEGEPRA 2015, Nov 2015, Clermont-Ferrand, France. . ⟨emse-01272981⟩
    • Eric Serris, Olivier Valfort, Olivier Bonnefoy. Utilisations de la tomographie à rayons X pour l'étude de la mise en forme des poudres. Matériaux 2014, Nov 2014, Montpellier, France. . ⟨emse-01099981⟩

  • Book sections3 document

    • Marc Thomas, Stefan Drawin, Olivier Bonnefoy. Les poudres métalliques. La fabrication additive des alliages métalliques 1 - procédés, matière première et simulation numérique, 1 (Section 2.1), ISTE Editions, pp.103 à 136, 2022, Science des matériaux – Procédés en science des matériaux, 978-1-78948-054-2. ⟨emse-03881417⟩
    • Marc Thomas, Stefan Drawin, Olivier Bonnefoy. Metal powders. Additive Manufacturing of Metal Alloys 1 - Processes, Raw Materials and Numerical Simulation, 1 (Section 2.1), ISTE Editions; Wiley, pp.97 à 129, 2022, Materials Science – Processes in Materials Science, 978-1-78945-054-5. ⟨emse-03878331⟩
    • Sylvain Martin, Olivier Bonnefoy. Méthode de Boltzmann sur réseau - Application à la mécanique des fluides. Sciences fondamentales, Mathématiques, Techniques de l'ingénieur, pp.BM5220 V1, 2019, Sciences fondamentales | Mathématiques, ⟨10.51257/a-v1-bm5220⟩. ⟨emse-02456859⟩

  • Theses1 document

    • Olivier Bonnefoy. Influence des cristaux d'hydrates de gaz ou de glace sur la perméabilité d'un milieu poreux. Energie électrique. Ecole Nationale Supérieure des Mines de Saint-Etienne, 2005. Français. ⟨NNT : ⟩. ⟨tel-00009658⟩

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