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25

Sebastien Rouquette, Associate Professor, Laboratoire de Mécanique et Génie Civil, Université de Montpellier, Montpellier, France


 

 

Research fields:

 

  • Experimental observation of phenomena occuring during arc welding operation such as: temperature, arc voltage, current welding, weld pool imaging ... and post operation: microstructure, distortions and residual stresses. Effect of process parameters on temperature field, beld bead geometry, final microstructures, distortions and residual stresses.

  • modelling and simulation: heat transfers (temperature field, estimation of heat source due to electric arc ...), solid mechanics (effect of elastoplactic models on residual stresses, distortions ...), metallurgical transformations (effect on residual stresses, hardness), fluid mechanics (motion of molten metal in weld pool, effect of welding current, chemical composition of weld pool shape ..).

  • Processes: GTAW, GMAW

 

Keywords: arc welding, wire arc + additive manufacturin, temperature measurement, heat source estimation, inverse heat transfer problems, heat transfer modelling and simulation, microstructure characterization, solid mechanics modelling and simulation, elastoplastic model, residual stresses measurement with neutron diffraction technique ...

 

Research experiences:

 

  • Sept 2008 till now:Associate Professor, Laboratoire deMécanique et Génie Civil, Université de Montpellier, CNRS, Montpellier, France (http://www.lmgc.univ-montp2.fr/spip.php?article89). Main topic:investigation of physical phenomena occuring during arc welding operation.

  • January 2013 to September 2013 :By-Fellow of French government, Churchill College, Cambridge (UK). Topic: In-situ observation of strainevolution during GTA welding withTime Resolved X-Ray Diffraction withx-ray synchrotron.

  • March 2008 to Aug. 2008: Research fellow, University of Birmingham (UK), Material and Metallurgy Department.Topic: investigation of heat transfer coefficient at the mould- aluminium casting interface under helium environment.

  • Sept. 2006 to feb. 2008:Post-doctoral research assistant, Heriot-Watt University, School of Mechanical Engineering, Edinburgh (UK). Topic:Iterative laser straightening of distorted-welded Aluminium alloy plates.

  • Sept. 2004 to Aug. 2006:Post-doctoral research assistant,Université de Technologie de Troyes, Troyes (France).Topic: Thermo-mechanical simulationof a metallicplate impacted by ametallic ball: application to shot-peening process.

  • Oct. 2003 to Aug. 2004:Temporary Lecturer position, Université de Bretagne Sud, Lorient (France). Topic: Estimation of the heat source during bead on plateElectron Beam welding.

  • Oct. 2000 to Sept. 2003:PhD in Engineering Sciences, Laboratoire PROcédés, Matériaux et Energie Solaire,Université dePerpignan, Perpignan(France). Thesis: Identification of heat transfers into a Plasma Assisted Chemical Vapour Deposition (PACVD) process with an inverse method.

 

 

 

Teaching:

 

  • Sept. 2008 till now, IUT de Nîmes, Mechanical Engineering department, Nîmes (France):

    • Arc welding processes, design of experiments classes.

    • Practical worksof arc welding & Non Destructive Testing.

  • Oct. 2003 to Aug. 2004:temporary lecturer position, Université de Bretagne sud, Lorient(France).

  • Oct. 2000 to Sept. 2003:teacher, UniversitédePerpignan Via Domitia, Perpignan(France).

 

 


Journal articles9 documents

  • Camille Cambon, Sébastien Rouquette, Issam Bendaoud, Cyril Bordreuil, R. Wimpory, et al.. Thermo-mechanical simulation of overlaid layers made with wire + arc additive manufacturing and GMAW-cold metal transfer. Welding in the World, Springer, 2020, ⟨10.1007/s40194-020-00951-x⟩. ⟨hal-02890140⟩
  • Arturo Gomez Ortega, Luis Corona Galvan, Mehdi Salem, Kamel Moussaoui, Stéphane Segonds, et al.. Characterisation of 4043 aluminium alloy deposits obtained by wire and arc additive manufacturing using a Cold Metal Transfer process. Science and Technology of Welding and Joining, Maney Publishing, 2019, 24 (6), pp.538-547. ⟨10.1080/13621718.2018.1564986⟩. ⟨hal-01990880⟩
  • Bachir Mezrag, Frédéric Deschaux-Beaume, Sébastien Rouquette, Mustapha Benachour. Indirect approaches for estimating the efficiency of the cold metal transfer welding process. Science and Technology of Welding and Joining, Maney Publishing, 2018, 23 (6), pp.508 - 519. ⟨10.1080/13621718.2017.1417806⟩. ⟨hal-01908950⟩
  • Sreedhar Unnikrishnakurup, Sébastien Rouquette, Fabien Soulié, Gilles Fras. Estimation of heat flux parameters during static gas tungsten arc welding spot under argon shielding. International Journal of Thermal Sciences, Elsevier, 2017, 114, pp.205-212. ⟨10.1016/j.ijthermalsci.2016.12.008⟩. ⟨hal-01576966⟩
  • Arturo Gomez Ortega, Luis Corona Galvan, Frédéric Deschaux-Beaume, Bachir Mezrag, Sébastien Rouquette. Effect of process parameters on the quality of aluminium alloy Al5Si deposits in wire and arc additive manufacturing using a cold metal transfer process. Science and Technology of Welding and Joining, Maney Publishing, 2017, 23 (4), pp.316 - 332. ⟨10.1080/13621718.2017.1388995⟩. ⟨hal-01763424⟩
  • Vincent Villaret, Frédéric Deschaux-Beaume, Cyril Bordreuil, Sébastien Rouquette, Corinne Chovet. Influence of filler wire composition on weld microstructures of a 444 ferritic stainless steel grade. Journal of Materials Processing Technology, Elsevier, 2013, 213, pp.474-483. ⟨10.1016/j.jmatprotec.2013.03.026⟩. ⟨hal-00825145⟩
  • Sébastien Rouquette, Emmanuelle Rouhaud, Manuel Francois, Arjen Roos, Jean-Louis Chaboche. Coupled thermo-mechanical simulations of shot impacts: Effects of the temperature on the residual stress field due to shot-peening. Journal of Materials Processing Technology, Elsevier, 2009, 209 (8), pp.3879-3886. ⟨10.1016/j.jmatprotec.2008.09.006⟩. ⟨hal-02276502⟩
  • S. Rouquette, J. Guo, Philippe Le Masson. Estimation of the parameters of a Gaussian heat source by the Levenberg-Marquardt method : Application to the Electron Beam Welding. International Journal of Thermal Sciences, Elsevier, 2007, 46 (2), pp.128-138. ⟨hal-00404134⟩
  • Florent Cochennec, Emmanuelle Rouhaud, Delphine Retraint, Sébastien Rouquette, Arjen Roos. Analysis of the Impact of a Shot at Low Velocity Using the Finite Element Method. Application to the Ultrasonic Shot-Peening Process. Materials Science Forum, Trans Tech Publications Inc., 2006, 524-525, pp.337-342. ⟨10.4028/www.scientific.net/MSF.524-525.337⟩. ⟨hal-02872957⟩

Conference papers16 documents

  • Camille Cambon, Issam Bendaoud, Sébastien Rouquette, Fabien Soulié. Influence of the first weld bead on strain and stress states in wire+arc additive manufacturing. The 12th International Seminar "Numerical Analysis of Weldability", Institute for Materials Science, Joining and Forming (IMAT), Sep 2018, Seggau, Austria. ⟨hal-01954354⟩
  • Luis Corona Galvan, Frédéric Deschaux-Beaume, Sébastien Rouquette. Characteristics of Steel deposits elaborated with Cold Metal Transfer process. ICWAM 2017, May 2017, Metz, France. ⟨hal-01951745⟩
  • Arturo Gomez Ortega, Luis Corona Galvan, Sébastien Rouquette, Frédéric Deschaux-Beaume. Effect of welding parameters on the quality of multilayer deposition of aluminum alloy. Advances in Materials & Processing Technologies Conference, Dec 2017, Vellore, India. ⟨hal-01909063⟩
  • Arturo Gomez Ortega, Luis Corona Galvan, Frédéric Deschaux-Beaume, Sébastien Rouquette. Wire and Arc Additive Manufacturing of aluminum alloy Al5Si parts. ICWAM 2017, May 2017, Metz, France. ⟨hal-01951773⟩
  • Sébastien Rouquette, Fabien Soulié, Sreedhar Unnikrishnakurup. Gaussian heat flux parameters estimation during a GTAW operation. International Conference on Inverse problems in Engineering, May 2014, Cracovie, Poland. ⟨hal-01777993⟩
  • Sébastien Rouquette. Parameter estimation of gaussian heat flux : investigation of stationnary Gas Tungsten Arc Welding (GTAW) operation. Quatrièmes Journées des Démonstrateurs en Automatique, Jun 2013, Angers, France. ⟨hal-01777999⟩
  • Sreedhar Unnikrishnakurup, Sébastien Rouquette, Fabien Soulié, Gilles Fras. Estimation of the Heat Flux Parameters : Application to GTA Static Welding Spot. 4th Inverse Problems, Design and Optimization Symposium, Jun 2013, Albi, France. ⟨hal-01777984⟩
  • Vincent Villaret, Frédéric Deschaux-Beaume, Fabien Januard, Jean-Marie Fortain, Gilles Fras, et al.. Développement de nouveaux fils fourrés pour le soudage à l'arc d'aciers inoxydables ferritiques destinés à la fabrication des parties chaudes de ligne d'échappement automobile. Matériaux 2010, Oct 2010, Nantes, France. 11p. ⟨hal-00808058⟩
  • S. Knupfer, Sébastien Rouquette, A.J. Moore. Straightening of distorted welded plates by iterative laser forming. 2nd International workshop on thermal forming and welding distortion, 2008, Bremen, Germany. ⟨hal-00447217⟩
  • S. Rouquette, Emmanuelle Rouhaud, Arjen Roos, H. Pron, Manuel Francois, et al.. Thermomechanical modeling of a steel plate impacted by a shot and experimental validation.. The 7th European Conference on Residual Stresses (ECRS7), Sep 2006, Berlin, Germany. ⟨hal-02615104⟩
  • P. Le Masson, S. Rouquette, Tahar Loulou, E. Artioukhine. Inverse heat conduction problem : Estimation of a source term for an electron beam welding; theoretical and experimental. III European Conference on Computational Mechanics, Jun 2006, Lisbon, Portugal. ⟨hal-00496746⟩
  • Sébastien Rouquette, Choumad Ould, Emmanuelle Rouhaud, Manuel Francois, Jean Louis Chaboche. Modélisation thermo-élasto-plastique du procédé de grenaillage par la méthode des éléments finis. 17ème congrès français de mécanique, Aug 2005, Troyes, France. ⟨hal-02615040⟩
  • Emmanuelle Rouhaud, Jean Louis Chaboche, Manuel Francois, Choumad Ould, Sébastien Rouquette. Finite elements model of shot-peening, effects of material's constitutive law. 9th international conference on shot-peening, Sep 2005, Marne-la-Vallée, France. ⟨hal-02613881⟩
  • S. Rouquette, Emmanuelle Rouhaud, H. Pron, Manuel Francois, Christian Bissieux. Thermo-elastic-plastic model for shot peening: a numerical and experimental approach. 9th International Conference on Shot Peening (ICSP9), Sep 2005, Paris, France. ⟨hal-02615036⟩
  • Sébastien Rouquette, Emmanuelle Rouhaud, Hervé Pron, Manuel Francois, Christian Bissieux. Thermo-elasto-plastic model for shot peening : a numerical and experimental approach. 9th international conference on shot-peening, Sep 2005, Marne-la-Vallée, France. ⟨hal-02613867⟩
  • S. Rouquette, Philippe Le Masson, Tahar Loulou. How to solve inverse problems with Femlab and Matlab environments. Eurotherm Winter School, Jan 2005, Aussois, France. ⟨hal-00401088⟩