Gérard Bernhart




Professeur - Ecole Nationale Supérieure des Mines d'Albi-Carmaux (Mines Albi)
Membre du groupe Matériaux et Structures Composites (MSC)



Activités de recherche

1 - Ingénierie et optimisation des procédés composites par thermo-compression et formage gonflage, en particulier basé sur l'utilisation de deux pilotes procédés :

     - le pilote EDyCO (Élaboration Dynamique des Composites) mettant une presse de thermo-compression équipée d'outillages chauffés par induction selon la technologie CageSystem et 3 iTech (technologies brevetées par RocTool)

     - le pilote de formage lampe permettant un chauffage de préformes par lampes infra-rouges, in-situ dans la chambre de gonflage-formage.

2 – Étude, développement et caractérisation de matériaux composites multifonctionnels (mécanique, blindage, thermique, électromagnétique) incluant en particulier de nouvelles fibres (basalte, ...) et textures (tricotées, ..) ainsi que des tapis de nanotubes de carbone (collaboration avec le CEA Saclay).

3 - Étude expérimentale, identification et modélisation des cinétiques de polymérisation de composites thermodurcissables et des cinetiques de cristallisation de composites thermoplastiques ; implantation des modèles dans des codes Éléments Finis (ABAQUS) ; développement sous Matlab de procédure d'identification et de logiciel d'aide à la définition de cycles (RETICULATOR)

4 - Recyclage de matériaux composites : reformulation de composites à partir de de fibres de carbone issue de composites traité par vapo-thermolyse

5 - Simulation de procédés composites (simulation de polymerisation, de la cristallisation, contraintes internes) et métalliques (formage superplastique de tôles aluminium et titane)

6 – Mise en forme par formage superplastique de tôles métalliques : modélisation du comportement thermo-elasto-visco-plastique cyclique des outillage et développement d'un procédé innovant de formage-gonflage de tôles en alliage de titane et d'aluminium.


Activités d'enseignement

- Responsable du Mastère Spécialisé AMPAS : Advanced Manufacturing Processes for Aeronautical Structures
- Enseignement en comportement et modélisation de matériaux composites (filière formation initiale et formation par apprentissage)

Responsabilités collectives

- Membre élu des professeurs au Conseil d’Administration de l'Ecole des Mines d'Albi
-
Animateur du DAS AMP (Aéromécanique-Matériaux-Procédés) du pôle de compétivité Aerospace Valley

Responsabilités administratives

- Membre du l’international Advisory Board du cycle de conférences ICSAM (International Conférence on Superplasticity of Advanced Materials)

- Membre du Board International du cycle de conférence annuelle EuroSPF (Conférence Européenne sur la Super-Plasticité)


Production scientifique

148 contributions

Article de revue internationale avec comité de lecture

[ACL1]M. Boulanghien, M. R' Mili, G. Bernhart, F. Berthet and Y. Soudais. Mechanical Characterization of Carbon Fibres Recycled by Steam Thermolysis: A Statistical Approach. Advances in materials Science and Engineering. , 1-10. 2018 [DOI]
[ACL2]O. De Almeida, J.-F. Ferrero, L. Escale and G. Bernhart. Charpy test investigation of the influence of fabric weave and fibre nature on impact properties of PEEK-reinforced composites. Journal of thermoplastic composite materials. , . 2018 [DOI]
[ACL3]C. Vicard, O. De Almeida, A. Cantarel and G. Bernhart. Experimental study of polymerization and crystallization kinetics of polyamide 6 obtained by anionic ring opening polymerization of ε-caprolactam. Polymer. 132, 88-97. 2017 [DOI]
[ACL4]M. Dos Santos, V. Velay, V. Vidal, G. Bernhart, G. Batalha and H. Matsumoto. Mechanical behavior of a Ti-6Al-4 V titanium alloy with microstructural evolution modeling under hot and superplastic conditions. Materialwissenschaft und Werkstofftechnik. 48(10)952-968. 2017 [DOI]
[ACL5]R. D'Elia, G. Bernhart, J. Hijlkema and T. Cutard. Experimental analysis of SiC-based refractory concrete in hybrid rocket nozzles. Acta Astronautica. 126, 168-177. 2016 [DOI]
[ACL6]N. Lona-batista, P. Olivier, G. Bernhart, M. Cerqueira-rezende and E. Cocchieri-botelho. Correlation between degree of crystallinity, morphology and mechanical properties of PPS/carbon fiber laminates. Materials Research. 19(1)195-201. 2016 [DOI]
[ACL7]L. Balea, G. Dusserre and G. Bernhart. Mechanical behaviour of plain-knit reinforced injected composites: effect of inlay yarns and fibre type. Composites Part B: Engineering. 56, 20-29. 2014 [DOI]
[ACL8]R. D'Elia, G. Bernhart, T. Cutard, G. Peraudeau and M. Balat Pichelin. Preliminary tests of silicon carbide based concretes for hybrid rocket nozzles in a solar furnace. Acta Astronautica. 99, 242-251. 2014 [DOI]
[ACL9]M. Poitrimolt, M. Cheikh, G. Bernhart and V. Velay. Characterisation of the transverse mechanical properties of carbon/carbon composites by spherical indentation. Carbon. 66, 234-245. 2014 [DOI]
[ACL10]G. Dusserre, L. Balea and G. Bernhart. Effect of stretching the knitted reinforcement and inlay yarns on the composite elastic properties: a semi-analytical model. Composites Part - A: Applied Science and Manufacturing. 64, 185-193. 2014 [DOI]
[ACL11]E. Bessard, O. De Almeida and G. Bernhart. Unified isothermal and non-isothermal modelling of neat PEEK crystallization. Journal of Thermal Analysis and Calorimetry. 115(2)1669-1678. 2014 [DOI]
[ACL12]A. Mazzoni, G. Bernhart and T. Cutard. Ceramic Fibre Reinforced Refractory Castables for Very High Temperature Superplastic forming. Materialwissenschaft und Werkstofftechnik. 43(9)758-762. 2013 [DOI]
[ACL13]M. Cusic, F. Abu-farha, P. Lours, Y. Le Maoult, G. Bernhart and M. Kraisheh. Towards superplastic forming of AZ31 magnesium alloy with controlled microstructure. Materialwissenschaft und Werkstofftechnik. 43(9)810-816. 2012 [DOI]
[ACL14]G. Dusserre, G. Bernhart, F. Schmidt and G. Dour. Evaluation of viscous and elastic parameters of a borosilicate glass above transition temperature using optical instrumented squeeze tests. Journal of Non-Newtonian Fluid Mechanics. 166(21-22)1229-1238. 2011 [DOI]
[ACL15]Z. Zhang, D. Delagnes and G. Bernhart. Cyclic behaviour and plastic strain memory effect of 55NiCrMoV7 steel under low cycle fatigue. Rare Metals. 30(SI)443-446. 2011 [DOI]
[ACL16]G. Dusserre, E. Jourdain and G. Bernhart. Effect of deformation on the in-plane permeability of knitted glass preform. Polymer Composites. 32(1)18-28. 2011 [DOI]
[ACL17]Y. Ledru, G. Bernhart, F. Schmidt, R. Piquet and L. Michel. Coupled visco-mechanical and diffusion void growth modelling during composite curing. Composites Science and Technology. 70, 2139-2145. 2010 [DOI] [OATAO]
[ACL18]C. Paris, P. Olivier and G. Bernhart. Modelling of the thermokinetic behaviour and the phases transitions of a carbon/polymeric composite submitted to high heating rate ramps. International Journal of Material Forming. 3(Suppl 1)639-642. 2010 [DOI]
[ACL19]G. Dusserre, G. Dour and G. Bernhart. In-situ determination of the heat flux density at the glass/mould interface during a glass pressing production cycle. International Journal of Thermal Sciences. 48(21)428-439. 2009 [DOI]
[ACL20]Z. Zhang, G. Bernhart and D. Delagnes. Cyclic behaviour constitutive modelling of a tempered martensitic steel including ageing effect. International Journal of Fatigue. 30(4)706-716. 2008 [DOI]
[ACL21]G. Bernhart, F. Nazaret and T. Cutard. Fiber reinforced refractory castables for SPF toolings. Materialwissenschaft und Werkstofftechnik. 39(4-5)317-321. 2008 [DOI]
[ACL22]Z. Zhang, Y.-H. Qi, D. Delagnes and G. Bernhart. Microstructure Variation and Hardness Diminution During Low Cycle Fatigue of 55NiCrMoV7 Steel . Journal of Iron and Steel Research International. 14(6)68-73. 2007 [DOI]
[ACL23]G. Bernhart, F. Nazaret and T. Cutard. Fibre reinforced refractory castables : an alternative solution for SPF die manufacturing. Materials Science Forum. 551-552, 37-42. 2007 [DOI]
[ACL24]Z. Zhang, Y.-H. Qi, X.-J. Wang, D. Delagnes and G. Bernhart. Relationship between microstructure and tempering time and temperature in 55NiCrMoV7 steel . transactions of materials and heat treatment. 28(2)73-76. 2007
[ACL25]Z. Zhang , D. Delagnes and G. Bernhart. Ageing effect on cyclic plasticity of a tempered martensitic steel. International Journal of Fatigue. 29(2)336-346. 2007 [DOI]
[ACL26]V. Velay, G. Bernhart and L. Penazzi. Cyclic behavior modeling of a tempered martensitic hot work tool steel. International Journal Of Plasticity. 33(3)459-496. 2006 [DOI] [HAL]
[ACL27]V. Velay, G. Bernhart, D. Delagnes and L. Penazzi. A continuum damage model applied to high-temperalture fatigue lifetime prediction of a martensitic tool steel. Fatigue and Fracture of Engineering Materials and Structures. 28(11)1009-1023. 2005 [DOI] [HAL]
[ACL28]C.Y. Gao, P. Lours and G. Bernhart. Thermomechanical stress analysis of superplastic forming tools. Journal of Materials Processing Technology. 169, 281-291. 2005 [DOI]
[ACL29]E. Cailleux, T. Cutard and G. Bernhart. Study of a ceramic refractory reinforced with metallic fibres : from the microstructure to the mechanical behaviour. Industrial Ceramics. 25(1). 2005
[ACL30]G. Dusserre, F. Schmidt, G. Dour and G. Bernhart. Thermo-mechanical stresses in cast steel dies during glass pressing process . Journal of Materials Processing Technology. 162-163, 484-491 . 2005 [DOI]
[ACL31]E. Cailleux, T. Cutard and G. Bernhart. Pullout of steel fibres from a refractory castable : experiment and modelling. Mechanics of Materials. 37(4)427-445 . 2005 [DOI]
[ACL32]Z. Zhang, D. Delagnes and G. Bernhart. Microstructure evolution of hot-work tool steels during tempering and definition of a kinetic law based on hardness measurements. Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing. 380(1-2)222-230. 2004 [DOI]
[ACL33]Z. Zhang, D. Delagnes and G. Bernhart. Influence of Tempering Temperature on Cyclic Viscoplastic Behaviour of 55NiCrMoV7 Steel . transactions of materials and heat treatment. 25(5)623-626. 2004
[ACL34]C.Y. Gao, P. Lours and G. Bernhart. Damages induced by thermomechanical cycles in superplastic forming tools. Key Engineering Materials. 274-276, 93-98. 2004 [DOI]
[ACL35]Z. Zhang, Y.-H. Qi, D. Delagnes and G. Bernhart. Microstructures and properties of the tempered steel 55NiCrMoV7. Heat Treatment of Metals. 29(3)27-32. 2004
[ACL36]G. Bernhart, F. Nazaret, A. Martinier, C.Y. Gao, D. Garriga Majo, T. Cutard and P. Lours. Design of SPF dies based on advanced material behaviour models. Materials Science Forum. 447-448, 123-130. 2004 [DOI]
[ACL37]V. Garat, G. Bernhart and L. Hervy. Influence of design and process parameters on service life of nut hot forging dies. Materials Science Forum. 147, 359-369. 2004 [DOI]
[ACL38]Z. Zhang, Y.-H. Qi, D. Delagnes and G. Bernhart. Time-Temperature-Hardness Kinetics Relation of Tempering Steels . transactions of materials and heat treatment. 25(1)41-45. 2004
[ACL39]P. Lours, H.V. Bui, A. Nafi, O. Mercier and G. Bernhart. Rapid Tooling for Injection Moulding Process . Materials Science Forum. 449-452, 789-792. 2004 [DOI]
[ACL40]K. Bavard, G. Bernhart and X. Zhang. High Temperature Low Cycle Fatigue of Spheroidal Graphite Cast Iron. International Journal of Cast Metals Research . 16(1-3)233-238. 2003
[ACL41]Z. Zhang, D. Delagnes and G. Bernhart. Anisothermal cyclic plasticity modelling of martensitic steels. International Journal of Fatigue. 24(6)635-648. 2002 [DOI]
[ACL42]S. Baleix, G. Bernhart and P. Lours. Oxidation and oxide spallation of heat resistant cast steels for superplastic forming dies. Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing. 327, 155-166. 2002
[ACL43]E. Cailleux, T. Cutard and G. Bernhart. Pullout of metallic fibres in ceramic refractory composites. Composites Part - A: Applied Science and Manufacturing. 33, 1461-1466. 2002
[ACL44]S. Baleix, S. Le Roux, G. Bernhart and P. Lours. Surface and image analysis of oxides grown and spalled on heat resistant cast steels exposed to thermal cycles. Journal of Materials Processing Technology. 118(1-3)321-328. 2001 [DOI]
[ACL45]P. Lours, T. Cutard, G. Bernhart and C. Levaillant. Performances of metallic and ceramic tools for superplastic forming. International Journal of Materials and Product Technology. SPM1(2)445-452. 2001
[ACL46]P. Lours, S. Le Roux and G. Bernhart. Oxidation behavior of creep resistant oxide-dispersion-strengthened alloy PM2000. Journal of Advanced Materials. 34(2)11-20. 2001
[ACL47]P. Lours, S. Baleix and G. Bernhart. Investigation on the Damages of Superplastic Forming Tools. Journal of Materials Processing Technology. 117/3(G2). 2001
[ACL48]S. Baleix, G. Bernhart and P. Lours. Investigation on the Spallation of Oxides Grown on Thermally Cycled Heat Resistant Cast Steels. Materials Science Forum. 539, 369-372. 2001
[ACL49]R. Beydon, G. Bernhart and Y. Segui. Measurement of metallic coatings adhesion to fibre reinforced plastic materials. Surface and Coatings Technology. 126(1)39-47. 2000
[ACL50]G. Bernhart, G. Moulinier , O. Brucelle and D. Delagnes. High temperature low cycle fatigue behaviour of a martensitic forging tool steel. International Journal of Fatigue. 21(2)179-186. 1999 [DOI]
[ACL51]O. Brucelle and G. Bernhart. Methodology for service life increase of hot forging tools.. Journal of Materials Processing Technology. 87, 237-246. 1999
[ACL52]T. Cutard, E. Cailleux, P. Lours and G. Bernhart. structural and mechanical properties of refractory concrete for superplastic forming tools. Industrial Ceramics. 19(2)100. 1999
[ACL53]P. Lours, J. Alexis and G. Bernhart. Oxidation resistance of ODS alloy PM2000 from 880°C to 1400°C. Journal of Materials Science Letters. 17, 1089. 1998
[ACL54]G. Navarre, B. Berton and G. Bernhart. Material Characterization in High Enthalpy Plasma Facilities. Journal of High Temperature Chemical Processes. 3, 273-284. 1994
[ACL55]M. Gomina, J.-L. Chermant, F. Osterstock, G. Bernhart and J. Mace. Applicability of fracture mechanics to fiber-reinforced CVD-Ceramic Composites. Fracture Mechanics of Ceramics. 7, 17-32 . 1986

Article de revue avec comité de lecture non répertorié

[ACLN1]F. Berthet, M. Boulanghien, G. Bernhart and Y. Soudais. Méthodes de détermination de la résistance en cisaillement à l’interface . Revue des Composites et des Materiaux Avances. 25(3-4)295-309. 2015 [DOI]
[ACLN2]G. Bernhart, J.-P. Arcens and Y. Le Maoult. Innovative Superplastic Forming Based on In-Situ Infra-Red Sheet Heating . Materials Science Forum. 735, 415-421. 2013
[ACLN3]C. Paris, G. Bernhart, P. Olivier and O. De Almeida. Influence de cycles de cuisson rapides sur le préimprégné aéronautique M21/T700 : suivi de polymérisation et propriétés mécaniques . Matériaux et Techniques. 100(6-7)611-622 . 2012 [DOI]
[ACLN4]V. Velay, G. Bernhart, A. Martinier and J.-Y. Moraux. High Temperature Fatigue of SPF Die Ni-Cr-Fe Heat Resistant Nickel-Chromium Cast Steels. Key Engineering Materials. 433, 69-76. 2010 [DOI]
[ACLN5]G. Bernhart, V. Velay and P. Lours. Heat resistant Ni-Cr-Fe steels for superplastic forming dies : from material microstructure to die design. Key Engineering Materials. 433, 77-84. 2010 [DOI]
[ACLN6]Z. Ahmer, V. Velay, G. Bernhart and F. Rezai-aria. Cyclic behaviour simulation of X38CrMoV5-47HRc (AISI H11) tempered martensitic hot-work tool steel. International Journal of Microstructure and Materials Properties. 3(2/3)326-335. 2008 [DOI]
[ACLN7]V. Velay, D. Delagnes and G. Bernhart. Advances in cyclic behavior and lifetime modelling of tempered martensitic steels based on microstructural considerations. Key Engineering Materials. 378-379, 81-100. 2008 [DOI] [HAL]
[ACLN8]V. Velay, G. Bernhart and D. Delagnes. Identification and validation of a continuum damage model applied for the lifetime prediction of H11 tool steel. International Journal of Microstructure and Materials Properties. 3(2-3)282-296. 2008 [DOI]

Communication invitée dans un congrès national ou international

[INV1]G. Bernhart, F. Nazaret and T. Cutard. Low cost refractory castable die development for titanium sheet superplastic forming. COBEF 2013 , 7th Brasilian congress on manufacturing engineering Invited plenary lecture 2013
[INV2]G. Bernhart and T. Cutard. Ceramic Die technology for Superplastic Forming : state of the art and recent improvements. Proceedings of RCS symposium ”Superplasticity and its Related Areas”, Ibaraki University, Japan Invited plenary lecture p.76-85 2010
[INV3]G. Bernhart, V. Velay and P. Lours. Heat Resistant Ni-Cr-Fe Steels for Superplastic Forming Dies : from material microstructure to die design. ICSAM 2009, 10th International Conference on Superplasticity in Advanced materials, Seattle, USA Invited plenary lecture 2009
[INV4]F. Nazaret, O. Barrau, G. Bernhart and T. Cutard. Innovative SPF toolings based on reinforced refractory concretes. ICSAM2009 – International Conference on Superplasticity in Advanced Materials (Seattle) Invited lecture 2009
[INV5]T. Cutard, E. Cailleux, F. Nazaret and G. Bernhart. Metallic fiber reinforced refractory concretes. Advances in Refractories for the Metallurgical Industries IV, COM2004 – Hamilton (Canada) Invited keynote lecture 2004
[INV6]P. Lours, H.V. bui, A. Nafi, O. Mercier and G. Bernhart. Rapid tooling for injection moulding process . ISAEM 2003 - PROCEEDINGS INTERNATIONAL SYMPOSIUM ON ADVANCED ENGINEERING MATERIALS , JEJU, KOREA, NOVEMBER 2003 published in ”Materials Science Forum” Invited lecture 2003
[INV7]P. Lours, T. Cutard, G. Bernhart and C. Levaillant. Performances of metallic and ceramic tools for superplastic forming tools . ISAEM 2000 - PROCEEDINGS INTERNATIONAL SYMPOSIUM ON ADVANCED ENGINEERING MATERIALS , GUILIN, PEOPLE REPUBLIC OF CHINA, OCTOBER 2000, SPM1, 2, 445, 2001 ”Special Issue: Int Journal of Materi Invited lecture 2001
[INV8]P. Lours, S. Baleix and G. Bernhart. Investigation on the damages of superplastic forming tools. THERMEC 2000 - PROCEEDINGS INTERNATIONAL CONFERENCE ON PROCESSING AND MANUFACTURING OF ADVANCED MATERIALS, LAS VEGAS, USA, DECEMBER 2000 Invited lecture 2000

Communication avec actes dans un congrès international ou national

[ACT1]J. Patou, R. Bonnaire, E. De Luycker, G. Brosseau and G. Bernhart. Analyse par stéréo-corrélation d'images de la déformation hors-plan d'une préforme textile FC/PPS . Proceedings of Journées Nationales sur les Composites 2017 2017 [HAL]
[ACT2]S. Jlassi, F. Berthet, S. Corveleyn, M. Boulanghien and G. Bernhart. Caractérisation de la résistance en cisaillement interfaciale des composites thermoplastiques polyamide66/fibres de carbone recyclées. Proceedings of JNC20: journées nationales des composites 20 2017
[ACT3]J. Patou, E. De Luycker and G. Bernhart. INFLUENCE OF VOID CONTENT ON THE MECHANICAL PROPERTIES OF CARBON/PPS LAMINATES. Proceedings of 17th European Conference on Composite Materials (ECCM17) p.1-7 2016
[ACT4]L. Chevallier, Q. Govignon, P. Olivier, G. Bernhart and M. Mayne L'hermite. MECHANICAL EFFECTS OF THE INJECTION-CVD NANOSTRUCTURATION OF CARBON-FIBRE COMPOSITES INVESTIGATED BY BUNDLE TENSILE TEST AND DMA. Proceedings of ICCM20 (20th International Conference on Composite Materials) 2015
[ACT5]L. Chevallier, Q. Govignon, P. Olivier, G. Bernhart, J. Bouillonnec and M. Mayne-lhermite. Three-dimensional permeability determination of reinforced composites structures with vertically aligned carbon nanotubes forests. Proceedings of ICCM 16 - 16th International Conference on Composite Materials - Sevilla Spain 22-26 June 2014 p.8 Pages 2014
[ACT6]M. Boulanghien, G. Bernhart, F. Berthet and Y. Soudais. FIBRE CHARACTERISATION OF STEAM THERMAL PROCESS RECYCLED CARBON FIBRE/EPOXY COMPOSITES. Proceedings of ICCM19- The 19th International conference on composites materials Composite Materials: the great advance p.9087-9094 2013
[ACT7]M. Boulanghien, G. Bernhart, F. Berthet, M. R'mili and Y. Soudais. Propriétés mécaniques de fibres de carbone recyclées par vapo-thermolyse. Proceedings of Mecamat 2013
[ACT8]M. Boulanghien , S. Ye, M. R'mili, G. Bernhart, Y. Soudais and F. Berthet. Recyclage de composites à fibre de carbone par un procédé de vapo-thermolyse = Recycling of carbon fiber composites using a steam-thermolysis process. Proceedings of JNC 18 - 18èmes Journées Nationales sur les Composites 12-14 juin 2013 2013
[ACT9]O. De Almeida, E. Bessard and G. Bernhart. Influence of processing parameters and semi-finished product on consolidation of carbon/PEEK laminates. Proceedings of ECCM15 (European Conference On Composite Materials 15), Venecia, Italy 2012
[ACT10]L. Escale, O. De Almeida, G. Bernhart and J.-F. Ferrero. Comparison of impact resistance of carbon/epoxy and carbon/PEEK composite laminates. Proceedings of ECCM15 (European Conference On Composite Materials 15), Venecia, Italy 2012
[ACT11]T. Poumadere, F. Lachaud, G. Bernhart, R. Piquet and F. Berthet. Influence of manufacturing process over mechanical properties of discontinuous carbon/epoxy composites realized by injection-tranfer. Proceedings of ECCM15 (European Conference On Composite Materials 15), Venecia, Italy 2012
[ACT12]E. Bessard, O. De Almeida and G. Bernhart. Experimental and modelling of isothermal crystallization of PEEK matrix and C/PEEK composites with application of parallel Avrami model. Proceedings of ECCM15 (European Conference On Composite Materials 15), Venecia, Italy 2012
[ACT13]T. Poumadere, F. Lachaud, G. Bernhart, R. Piquet and F. Berthet. Etude du comportement d'un matériau composite réalisé par injection-transfert de fibres mi-longues discontinues de carbone et de résine époxyde = Investigation of the behaviour of a discontinuous medium length carbon fibres and epoxy resin composite material manufactured by injection-transfer m. Proceedings of JNC17-17émes journées nationales des composites p.9 pages 2011 [HAL]
[ACT14]C. Paris, G. Bernhart, P. Olivier and O. De Almeida. Influence de cycles de cuisson rapides sur le préimprégné aéronautique M21/T700 : suivi de polymérisation et propriétés mécaniques. Proceedings of JNC 17 - 17èmes Journées Nationales sur les Composites 2011
[ACT15]E. Bessard, O. De Almeida and G. Bernhart. Etude et modélisation de la cinétique de cristallisation du PEEK lors de refroidissements isothermes et anisothermes. Proceedings of JNC 17 - 17èmes Journées Nationales sur les Composites 2011
[ACT16]E. Bessard, O. De Almeida and G. Bernhart. Melt state behaviour of PEEK and processing window interpretation for fast compression moulding process. Proceedings of AMPT 2010 - International conference on Advances in Materials and Processing Technologies p.167-172 2010
[ACT17]N. Decultot, L. Robert, V. Velay and G. Bernhart. Single point incremental sheet forming investigated by in-process 3D digital image correlation. Proceedings of 14th International Conference on Experimental Mechanics (ICEM'14), Poitiers (France), 4-9 July 2010 p.1151-1154 2010 [DOI]
[ACT18]E. Bessard, O. De Almeida and G. Bernhart. Analyse du comportement du PEEK dans le procédé de fabrication de composites structuraux par thermo-compression. Proceedings of Matériaux 2010 2010
[ACT19]V. Velay, G. Bernhart, A. Martinier and J.Y. Moraux. High temperature fatigue of spf die ni-cr-fe heat resistant nickel-chromium cast steels. Proceedings of ICSAM 2009 - 10th International Conference On Superplasticity In Advanced Materials - Seattle, USA p.69-76 2010 [DOI]
[ACT20]G. Bernhart, V. Velay and P. Lours. Heat resistant Ni-Cr-Fe steels for superplastic forming dies : from material microstructure to die design. Proceedings of ICSAM 2009 - 10th International Conference on Superplasticity in Advanced Materials - Seattle, USA 2009 [DOI]
[ACT21]Y. Ledru, L. Michel, R. Piquet, F. Schmidt and G. Bernhart. Quantification 2-D et 3-D de la porosité par analyse d’images dans les matériaux composites stratifiés aéronautiques 2-D and 3-D - void quantification with image analyse s in aeronautic composite laminates . Proceedings of JNC 16 2009
[ACT22]Y. Ledru, R. Piquet, F. Schmidt, L. Michel and G. Bernhart. Modeling of voids growth mechanisms during manufacturing composites laminates”, . Proceedings of FPCM-9, 9th International Conference on Flow Processes in Composite Material 2008
[ACT23]N. Decultot, V. Velay, L. Robert, G. Bernhart and E. Massoni. Behaviour modelling of aluminium alloy sheet for single point incremental forming. Proceedings of 11th Esaform Conference On Material Forming, Lyon (france) p.1151-1154 2008 [DOI]
[ACT24]N. Decultot, G. Bernhart, L. Robert, V. Velay and E. Massoni. Etude du comportement de tôle d’aluminium embouties par formage incrémental. Proceedings of Colloque MECAMAT 2008, Aussois, France, Janvier 2008
[ACT25]V. Velay, G. Bernhart and D. Delagnes. Identification and validation of a continuum damage model applied for the lifetime prediction of h11 tool steel. Proceedings of 7th International Tools 06 Conference, Torino Italie 2006 [DOI]
[ACT26]Z. Ahmer, V. Velay, G. Bernhart and F. Rezaï-aria. Cyclic behaviour simulation of x38crmov5-47hrc (aisi h11)-tempered martensitic hot-work tool steel . Proceedings of Proceedings Of 7th International Tools 06 Conference, Torino Italie p.326-335 2006 [DOI]
[ACT27]G. Dusserre, F. Schmidt, G. Dour and G. Bernhart. Thermo-mechanical stresses in cast steel dies during glass pressing process. Proceedings of 8th International Conference on Advances in Materials and Processing Technologies 2005
[ACT28]T. Branza, A. Martinier, A. Duchosal, F. Deschaux Beaume, G. Bernhart and P. Lours. Fatigue damage and weld repair of heat resistant cast steel SPF dies. Proceedings of Proceedings of the third European Conference on Superplastic Forming, EURO-SPF04, Ed. by G. Bernhart, T. Cutard & P. Lours, Albi, France, July 2004 2004
[ACT29]F. Nazaret, T. Cutard and G. Bernhart. Thermomechanical behaviour of a fibre-reinforced refractory concrete: tests and analysis. Proceedings of Sixth RILEM Symposium on Fibre-Reinforced Concretes, Varenna (Italie), Septembre 2004. 2004
[ACT30]C. Gao, G. Bernhart and P. Lours. Damages induced by thermomechanical cycles in superplastic forming tools . Proceedings of Proceedings of the 7th Asia-Pacific Symposium on Engineering Plasticity and Its Application AEPA’04 Shanghai, China, september 2004 2004
[ACT31]F. Nazaret, T. Cutard and G. Bernhart. Mechanical behavior of ceramic materials for SPF toolings. Proceedings of EuroSPF04, European Conference on Superplastic Forming 2004 – Albi (France) - 2004
[ACT32]H.V. Bui, P. Lours and G. Bernhart. Influence of porosity and anisotropy on the mechanical properties of direct laser sintered metal powder for injection moulding tools. Proceedings of Proceedings of the 4th International Conference on Industrial Tools Bled, Slovenia, April 2003 2003
[ACT33]G. Bernhart, F. Nazaret, A. Martinier, C. Gao, D. Garriga Majo, T. Cutard and P. Lours. Design of SPF dies based on advanced material behaviour models. Proceedings of International Conference on Superplasticity of Advanced Materials ICSAM 2003, Oxford, UK, July 2003 2003
[ACT34]H.V. Bui, P. Lours, G. Bernhart, B. Le Razer and P. Barcq. L'outillage rapide: nouvelle technologie de fabrication rapide de pièces et d’outillage par frittage de poudre - Analyse technique et scientifique. Proceedings of Actes du colloque PMF 2003, Commission poudres et matériaux frittés de la SF2M-GFC « De la poudre au matériau massif» Albi, Ecole des Mines, Juin 2003 2003
[ACT35]G. Bernhart, S. Baleix and P. Lours. Fissuration et écaillage de couches d’oxyde lors de cycles thermiques . Proceedings of Journée thématique du groupe de travail «Interfaces dans les milieux solides»-Colloque Mécamat ONERA Châtillon, France, Janvier 2002 2002
[ACT36]G. Bernhart, S. Baleix, P. Lours and T. Cutard. Thermomechanical behaviour and characterisation of SPF tooling materials. Proceedings of Second European Conference on Superplastic Forming, EURO-SPF02 Bristol, UK, June 2002 2002
[ACT37]V. Velay, A. Persson, G. Bernhart, L. Penazzi and J. Bergström. Thermal fatigue of a tool steel: experiment and numerical simulation. Proceedings of 6th International Tooling Conference: The Use Of Tool Steels: Experience And Research p.667-685 2002
[ACT38]T. Cutard, E. Cailleux and G. Bernhart. Ceramic materials : alternative materials for SPF tooling. Proceedings of First European Conference on the Superplastic Forming Process (EuroSPF01) – Villars de Lans (France) 2001
[ACT39]T. Cutard, E. Cailleux and G. Bernhart. Pullout of metallic fibres from a ceramic refractory matrix. Proceedings of International Conference on Interface Phenomena in Composite Material (IPCM2001) – Arcachon (France) 2001
[ACT40]S. Baleix, S. Le Roux, G. Bernhart and P. Lours. Surface and image analysis of oxides grown and spalled on heat resistant cast steels exposed to thermal cycles. Proceedings of International Conference on Advances in Materials and Processing Technologies AMPT 99 p.1175-1184 1999
[ACT41]S. Baleix, P. Lours and G. Bernhart. High temperature mechanical behaviour of NiCrFe heat resistant cast steel . Proceedings of Proceedings of the 8th International Conference on Mechanical Behaviour, Victoria (Canada), 1999 1999
[ACT42]G. Bernhart, P. Lours, F. Rézaï-aria and C. Levaillant. Effet de la thermique transitoire sur l’endommagement des outillages dans les procédés de formage . Proceedings of Actes des journées de la Société Française des Thermiciens (SFT) sur la thermique de la machine outil et de l’usinage, Bordeaux (France), 20 janvier, 1999 1999
[ACT43]S. Baleix, Y. Le Maoult, S. Frenois, Y. Marcel, P. Lours and G. Bernhart. Simulation of service life cycle induced thermomechanical stresses in a superplastic forming tool . Proceedings of Proceedings of the 3rd international Congress on Thermal Stresses, edited by J.J. Skrzypek and R.B. Hetnarski, Cracow (Poland), 317, 1999 p.317 1999
[ACT44]Y. Le Maoult, S. Baleix, P. Lours and G. Bernhart. Application industrielle de la thermographie infrarouge au comportement des outillages de formage superplastique . Proceedings of Actes des journées du GAMI du CETIM sur les applications de la thermographie dans les industries mécaniques, Senlis (France), 22-23 juin, 1999 1999
[ACT45]F. Decla, S. Le Roux, G. Bernhart, C. Levaillant and N. Fréty. Plasma sprayed electrical conductive coating on C.F.R.P. materials : microstructure and electrical properties. Proceedings of 11th International Conference on Surface Modification Technologies p.293-299 1997

Communication sans actes dans un congrès international ou national

[COM1]C. Vicard, O. De Almeida, A. Cantarel and G. Bernhart. TTT diagram of the anionic polymerization of PA6 from ε-caprolactam. ICCM21 2017 [HAL]
[COM2]C. Vicard, O. De Almeida, A. Cantarel and G. Bernhart. . Diagramme TTT de la polymérisation anionique du PA6 à partir de l’ε-caprolactame. JNC20 2017 [HAL]
[COM3]G. Bernhart, V. Velay and T. Cutard. Moules pour formage superplastique du titane : matériaux, propriétés et conception. Moules et Outils 2015 2015
[COM4]J. Bouillonnec, G. Bernhart, M. Pinault, P. Olivier and M. Mayne L'hermite. Thermal conductivity enhancement of vertically aligned nanotube carpet reinforced thermoset composites. ICCS18 - 18th International Conference on Composite Structures 2015
[COM5]E. Bessard, O. De Almeida and G. Bernhart. Processing Parameter Optimisation of C/PEEK Composites using Fast Thermo-Compression Technology. Russian-French Symposium on Composite Materials, 10-13 july – Saint-Petersbourg – Russia 2012
[COM6]A. Mazzoni, G. Bernhart and T. Cutard. Ceramic Fibre Reinforced Refractory Castables for Very High Temperature Superplastic forming. EuroSPF2010, 8th European Conference on Superplastic Forming, San Sebastian (Spain) 2010
[COM7]Y. Ledru, R. Piquet, F. Schmidt, L. Michel and G. Bernhart. Voids growth mechanisms during manufacturing of aeronautical composite laminates”. 3ème congrès Rotomoulage, Thermoformage et Soufflage 2009
[COM8]Y. Ledru, R. Piquet, F. Schmidt, L. Michel and G. Bernhart. Voids growth mechanisms during manufacturing of aeronautical composite laminates. First Japanese-French Joint Workhop (EMAC-Tohoku University-INSA) 2008
[COM9]L. Robert, N. Decultot, V. Velay, S. Ramde and G. Bernhart. Behaviour identification of aluminium sheet used in Single Point Incremental Forming by Finite Element Method Updated. Photomechanics 2008, Loughborough, UK 2008
[COM10]G. Bernhart, L. Robert and J.-J. Orteu. Mesures in-situ dans les matériaux et procédés composites à partir de Fibres Optiques à Réseau de Bragg. Colloque AquiQuebec'08, Bordeaux (France), 21-23 juillet 2008 2008
[COM11]G. Bernhart, T. Cutard, Y. Le Maoult, F. Schmidt and J.-P. Arcens. Infra-red sheet heating assisted Superplastic Forming.. EuroSPF2008, 7th European Conference on Superplastic Forming, Carcassone (France) 2008 2008
[COM12]F. Nazaret, T. Cutard and G. Bernhart. Comportement thermomécanique d'un béton réfractaire renforcé de fibres métalliques : essais mécaniques, microstructures et simulations numériques. Journées Spécialisées Réfractaires du Groupe Français de la Céramique – Orléans - Septembre 2004. 2004
[COM13]T. Cutard, P. Lours and G. Bernhart. Mechanical Properties of SPF-tooling Materials. Second European Conference on the Superplastic Forming Process (EuroSPF02) – Bristol (Angleterre) – Juin 2002. 2002
[COM14]T. Cutard, E. Cailleux and G. Bernhart. Comportements thermomécaniques de bétons réfractaires renforcés par des fibres métalliques. Journées Réfractaires du Groupe Français de la Céramique - Paris (France) – Juillet 2000. 2000
[COM15]T. Cutard, P. Lours and G. Bernhart. New developments on metallic and ceramic toolings for the superplastic forming of titanium alloys. Journées du Groupe Anglais de Superplasticité - Farnborough (UK) – Juin 2000. 2000
[COM16]T. Cutard, E. Cailleux and G. Bernhart. Comportements thermomécaniques de bétons réfractaires. Renforcement par fibres métalliques pour des applications dans le domaine de la mise en forme. Colloque sur Les Propriétés d'Usage des Réfractaires - Nancy (France) - Juin 1999. 1999

Communication par poster dans un congrès international ou national

[AFF1]J. Bouillonnec, M. Pinault, M. Mayne-l Hermite, G. Bernhart, P. Olivier and M. Gardou. Composite materials prepared from vertically aligned carbon nanotubes: elaboration and properties. ChemOnTubes 2012 (Arcachon) 2012
[AFF2]E. Bessard, O. De Almeida and G. Bernhart. Manufacturing of structural thermoplastic composites with fast compression moulding process . SAMPE Europe, Paris, France 2012
[AFF3]G. Bernhart, G. Peraudeau, M. Balat-pichelin and T. Cutard. Étude du comportement à très haute température de bétons réfractaires à base de SiC pour application en environnement de propulsion hybride. Journées spécialisées « Céramiques réfractaires », Mons (Belgique), 2012. 2012
[AFF4]F. Nazaret, T. Cutard and G. Bernhart. Influence des fibres métalliques dans le comportement mécanique à haute température d'un béton réfractaire renforcé. MECAMAT – Aussois (France) - Janvier 2004. 2004
[AFF5]T. Branza, G. Bernhart, P. Lours, F. Deschaux Beaume, V. Richefeu, A. Duchosal and G. Fras. Rechargement TIG d’outillages de formage superplastique: essais et simulation . Actes du Colloque National MECAMAT, Ecole de Mécanique des Matériaux : « Assemblages : des Matériaux à la Structure » Ed. V. Aubin, S. Degallaix, Y. Desplanques, MC. Tan 2003
[AFF6]P. Lours, K. Bavard, H.V. Bui and G. Bernhart. Influence of casting defects on the fatigue behaviour of martensitic tool steel . 4th International Conference on Mechanics and Materials in Design Nagoya, Japon, June 2002 2002
[AFF7]S. Baleix, G. Bernhart, E. Cailleux, T. Cutard and P. Lours. Matériaux réfractaires pour outillages de formage superplastique . Actes du Colloque Matériaux Réfractaires de la SF2M Section sud-est, Cavaillon (France), 13-14 janvier, 1999 1999
[AFF8]E. Cailleux, P. Lours, T. Cutard and G. Bernhart. Structural and mechanical properties of a refractory concrete for superplastic forming tools. CIMTEC'98-World Ceramics Congress & Forum on New Materials–Florence (Italie) - Juin 1998. 1998
[AFF9]P. Lours, J. Alexis and G. Bernhart. High temperature oxidation behaviour and creep properties of ODS alloy PM2000 . Proceedings of the 14th International Plansee Seminar, edited by G. Kneringer, P. Rödhammer & P. Wilhartitz, Reutte (Austria), 1, 869, 1997 1997

Chapitre d'ouvrage scientifique

[OSC1]G. Dusserre and G. Bernhart. Knitting processes for composites manufacture . In book advances in composites manufacturing and process design, Chap. 2, p.27-53. Ed. . 2015 ISBN:978-1-78242-307-2
[OSC2]G. Bernhart, P. Lours, T. Cutard, V. Velay and F. Nazaret. Processes and equipments for superplastic forming of metals . In book Superelastic Forming of Advanced Metallic Materials – Methods & Applications, Chap. 3, p.49-71. Ed. Woodhead Publishing in Materials. 2011 ISBN:978-1-84569-753-2 [DOI]

Direction d'ouvrage collectif

[DO1]G. Bernhart. Superplasticity in Advanced Materials - ICSAM 2012. Materials Science Forum. 735, 426p. Ed. Trans tech Publications. 2013 ISBN:978-3-03785-553-9
[DO2]G. Bernhart, T. Cutard and P. Lours. Third European Conference on SuperPlastic Forming - Proceedings. CEPADUES-EDITIONS. , Ed. CEPADUES-EDITIONS. 2004 ISBN:2.85428.649.9

Autre publication

[AP1]M. Boulanghien, S. Da Silva, F. Berthet, G. Bernhart and Y. Soudais. Using steam thermolysis to recycle carbon fibres from composite waste. JEC Magazine, N°100 Oct 2015,pp68-70 2015

Brevet

[BR1]T. Cutard, F. Nazaret, N. Donval and G. Bernhart. Outillage utilisé pour la mise en oeuvre de composites à matrice organique. Brevet No.10 01451, 2010
[BR2]F. Nazaret, T. Cutard and G. Bernhart. Outillage utilisé lors d'un procédé de formage superplastique. Brevet No.08352011.4-2111, 2008



INSTITUT CLEMENT ADER, 3, rue Caroline Aigle F-31400 Toulouse, France.
Livraisons : +33 (0)5 61 17 10 07
Secrétariat ICA: +33 (0)5 61 17 10 85 ou +33 (0)5 61 17 10 82
Fax : +33 (0)5 61 17 10 80