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The successful candidate will carry out his research in IRTES-M3M laboratory, INCIS team. He
(or she) will be supervised by:
Mr Abboudi Said Professor
And
Mr Lebal Nadhir, Associate Professor
Title: Optimization of the material process and product interaction: application to injection molding
Abstract:
Multi-physics simulation is necessary to model real-world situations, explore design options, and guide
R&D. Injection process involves many technical disciplines (fluid, heat transfer, material, solifidication,
polymer,…) and many computational codes such as: Rem3D®, Fluent®, Abaqus®, Ansys®.
Injection molding is the most commonly used polymer processing operation for the fabrication of plastic
parts. The injection process allows the manufacture of great range of products which vary in their size,
complexity, and application, at high production rates and with a large degree of automation, in a single
operation.
An injection machine is basically composed of two mains parts: - an injection molding machine, where
polymer is molten in a screw - barrel system after having be introduced in the granule form through a
hopper, and a mold.
Injection molding processing involves then the non-isothermal flow of a viscous molten polymer, a
solidification phase, the flow of a semi solid material during solidification and stress relaxation in the
solid. In any case, thermomechanical models have to be developed that should account for specificity
of properties of polymers. In particular, the visco elastic behavior of both the molten and the solid
material should be accounted for.
To guarantee the quality of the final parts, a precise characterization and monitoring of the injection
molding process is essential. Using analytical solutions is limited due to the complexities of the
governing equations, of the material behavior and of the cavity geometry. Therefore, numerical tools
are a good solution to get useful results. To achieve such code governing equations are solved by the
computational algorithms in a discretized form. In the literature, a variety of numerical methods were
developed such as the finite element method, the finite difference method, the meshless particle method,
and the boundary element method. Each method has some advantages in a certain class of problems.
Objectives of the proposed subject:
- Identification and development of methodologies of optimization, allowing to overcome difficulties
linked to the proposed problems.
- Definition of the objectives functions, and constraints, intended to be used for the problem formulation
assuring a mathematical quantification of defects and objectives.
- Coupling the optimization methodology adopted as well as quality criteria with the developed or
commercial codes (Rem3D ® and Abaqus®, Ansys®) in order to study the polymers flows in tools
during injection process.
Keywords: Numerical simulation, finite element, optimisation, interaction material-product-process,
injection molding, polymer, rheology.
Required competences:
- Mechanical-Material-Process
- Non linear mechanic
- Rheology: polymer flow, injection molding
- Numerical methods, commercial codes (Abaqus, Ansys, Rem3D…).
- Optimization (Conjugate gradient, Newton, Stochastic, hybrid methods).
References
1- N. Lebaal, F. Schmidt, S. Puissant, D. Schläfli, Design of optimal extrusion die for a range of different
materials. Polym. Eng. Sci., ISBN 0032-3888, vol. 49, n° 3. (2009)- p.432-440.
2- N. Lebaal, F. Schmidt, S. Puissant, Design and optimization of three dimensional extrusion dies, using
constraint optimization algorithm. Finite Elements in Analysis and Design, vol.45 (2009), pp. 333 -340.
3- N. Lebaal, S. Puissant, F. Schmidt, Application of a response surface method to the optimal design of the wall
temperature profiles in extrusion die. Int. J. Mater. Form. vol. 3, n° 1, (2010).pp 47-58.
4- N. Lebaal, F.M. Schmidt, S. Puissant, Optimization of extrusion flat die design and regulation temperatures,
using Kriging and response surface method. Int. J. Materials and Product Technology, Vol. 38, Nos. 2/3, (2010),
pp. 307-322.
5- Gruber, Maxime, Nadhir Lebaal, Sebastien Roth, Nizar Harb, Peter Sterionow, et Francois Peyraut.
« Parameter identification of hardening laws for bulk metal forming using experimental and numerical
approach ». International Journal of Material Forming 9, no 1 (janvier 2016): 21-33. doi:10.1007/s12289-0141196-5.
6- Lebaal, Nadhir, Marc Oudjene, et Sébastien Roth. « The optimal design of sheet metal forming processes:
application to the clinching of thin sheets ». Int. J. Computer Applications in Technology 43, no 2 (2012):
110-16.
7- Lebaal, Nadhir, Fabrice Schmidt, et Stephan Puissant. « Optimisation of extrusion flat die design and die
wall temperature distribution, using Kriging and response surface method ». Int. J. Materials and Product
Technology, Vol. 38, Nos. 2/3, 2010 307 38, no 2/3 (2010): 307.
8- A.N. Korti & S. Abboudi. Numerical simulation of the interface molten metal air in the shot sleeve chamber
and mold cavity of a die casting machine. Heat Mass Transfer (2011) 47:1465–1478. DOI 10.1007/s00231-0110808-6.
9- A.N. Korti, M.Ch. Korti, S. Abboudi. Minimizing Air Entrainment in the Shot Sleeve During Injection Stage of
the HPDC Machine. Journal of Materials Science and Engineering, A 3 (3) (2013) 153-161.
10- A. N. Korti, S. Abboudi. Effects of Shot Sleeve Filling on Evolution of the Free Surface and Solidification in
the High-Pressure Die Casting Machine. International Journal of Metalcasting, (), 1-17. DOI 10.1007/s40962016-0051-5.
Research Institute on Transportation, Energy and Society
Institut de Recherche sur les Transports, l’Energie et la société
IRTES
The IRTES consists of:
- Four laboratories: LERMPS: Materials, M3M: Mechanics, RECITS: Society and SeT: Systems and
Transportation.
- 314 members including 136 PhD students
- 14 000 m2 allocated to offices and technology platforms.
- 5 million euros of budget per year.
IRTES-M3M: Mechatronics Laboratory: Methods, Models and Crafts, is one of the four laboratories of IRTES
Institute. It has about 60 members including 18 PhD students, over three teams:
- MOS Team: Modeling and Structural Optimization
- INCIS Team : Digital Engineering for the Design of Mechanical Systems
- SMA Team : Mechanical Adaptive System
The Research budget, about 1.5 M€ over the last four years, comes from Local authority (37%), Ministerial fund
for competitiveness (32%), European funds for regional development (13%), Industrial contracts (13%),
Ministry of research (5%) and European projects (1%).
Simplified Curriculum Vitae
ABBOUDI Said
Professor
University of Technology of Belfort Montbéliard
Université de Technologie de Belfort Montbéliard (UTBM)
IRTES-M3M: Mechatronics Laboratory: Methods, Models and Crafts
IRTES-M3M : Laboratoire de Mécatronique : Méthodes, Modèles et Métiers (M3M)
Department of Ergonomy, Design and Mechanical Engineering
Département d’Ergonomie, Désign et Ingénierie Mécanique (EDIM)
Site de Sévenans, 90010 Belfort Cedex France.
Phone : 33 (0)3-84-58-30-36
Cell : 33 (0)6-20-18-02-63
Fax : 33 (0)3-84-58-30-30
Email : [email protected]
Education
First Ph.D. (Doctorat de 3ème Cycle), Heliophysics laboratory, University of Aix-Marseille, 1982.
Thesis subject: Numerical study of free convection inside confined cavity: implementation of a pseudo-spectral
method for solving Naviers Stokes systems.
Second Ph.D. (Doctorat d’Etat Es-Sciences Physiques), Thermal Systems and Heat Transfer laboratory,
University of Aix-Marseille 1, 1988.
Thesis subject: Transient conjugated forced convection in rectangular channel under variable boundary
conditions, application to solar system.
Experience
- Full Professor, UTBM, October 2011
- Associated Professor, UTBM, 1988-2011.
- Associated Professor, Department of Physics, University of Aix-Marseille 1, 1981-1984 and 1987-88.
- Associated Professor, Department of Applied Physics, University of Corse, 1985-86.
- Teaching Assistant, Institute of Chemistry, University of Aix-Marseille 3, 1981-1985.
- Teaching Assistant, University of Aix-Marseille 3, Department of Sciences and Technics, 1980-81.
Research activities
Key words: Conduction, convection, multimaterial, conjugate heat transfer, thermal coupling, numerical
methods, optimization, inverse problems, multi-physics coupling.
Scientific production
- International journals: 60 papers
- Plenary lecture : 3
- National journals: 7 papers
- International conferences: 160 papers
- National conferences: 40 papers
- Other conferences: 5 papers
Superviser
- Masters: 14 students
- Thesis: 18 students
- Thesis in progress: 4
Reviewer for journals and conferences
- Applied Thermal of Engineering
- Journal of Heat Transfer
- Numerical Heat Transfer
- Thermal Stresses
- Inverse Problem of Science Engineering
- Int. Journal of Thermal Sciences
- Acta Mechanica
- Physical Sciences Research International
- Heat Mass Transfer
- Journal of Renewable and Sustainable Energy
- Thermal Sciences, an International Journal
- Journal of Engineering Science and Technology
- Asian Heat Transfer Journal
- 26th International Thermal Conductivity Conference, 14th International Thermal Expansion Symposium,
ITCC26, ITES14, 6-8 August 2001, Cambridge, Massachusetts, Boston.
- Multidisciplinary Inverse Problems and Optimization in Heat Transfer, IMECE98, Anaheim, CA, November 1520, 1998.
- 2nd International Conference on Sciences of Mechanics, Oum el Bouaghi, Algérie 16 - 18 Novembre 2008.
- Congrès Français de Mécanique, Besançon, aout 2011.
- Congrès National de Mécanique des Fluides, Alger, octobre 2012.
- Journées Internationales de Thermique JITH’13, Marrakech, novembre 2013.
- Journées des Jeunes chercheurs de l’UTBM, INGEDOC
- International Symposium on Convective Heat and Mass Transfer CONV-14, Kusadasi, Turkey, June 8-13, 2014.
- 3ème Séminaire sur les Technologies Mécaniques Avancées (STEMA), 08 et 09 Novembre 2014. Tlemcen,
Algérie.
- International Conference on Renewable Energy: Generation and Applications” ICREGA’16, 8-10 février,
Belfort.
Industrial and Scientific collaborations
- GEC-ALSTHOM Belfort: 1991.
- UDD-FIM Delle: 1993.
- NIPSON Printing Systems, Belfort: 1995.
- European Society of Propulsion SEP: 1995-96.
- EDF Les Renardières - Moret sur Loing: 1996
- FRANHOFER Institute IPM Heidenhofstrafle 8, Fribourg: 1996-97
- Peugeot Belchamp, Montbéliard: 1998
- Parkeon compagny: ADEME, Besançon, 2008.
- VonRoll, Delle: 2012.
International collaborations
University of Beyrouth, Lebanon: 5 masters, 2 theses
University of Tlemcen, Algeria: 1 thesis, 2 theses in progress
University of Constantine, Algeria: 1 thesis, 2 theses in progress
University USTHB, Alger, Algeria: 2 theses in progress
University of Batna, Algeria: 2 theses.
University of Kénitra, Morocco, 1 thesis in progress
University of Marrakech, Morocco, in progress
UTSEUS University of Shanghai, China, in progress
Northwestern Polytechnical University, Laboratory of Contemporary Design and Integrated Manufacturing
Technology, Xi'an, China: Sino-French joint structures convention, 2 theses.
University of Quebec : Chcoutimi, Canada.
Educational activities
Educational activities at UTBM: course 30 hours, tutorial works 28h, practical works 14h
- Mathematics for engineer, since 1989
- Numerical methods for engineer, since 1989
- Heat transfer, since 1990
- Advance and applied mathematics for engineer, since 2009
- Probabilities and statistics: course (20h) conducted at the University of Shanghai, 200
Educational activities: before 1988
- Optic, University of Aix-Marseille 1, 1981-82
- Elctrostatic, magnetostatic, University of Aix-Marseille 1, 1983-84
- Electromagnetism, relativistic mechanics, University of Aix-Marseille 1, 1982-83
- Electrical circuit, Energetic, University of Corse, 1985-86.
Educational activities for Masters
- Heat and mass transfer: 12 h, Belfort, Université of Franche Comté, 1990-92.
- System analysis and optimization: 30h, University of Constantine, 1989-91.
- Optimization and inverse methods in thermal systems: 25h/an, University of Liban, Beyrouth, 2003-2016.
- Numerical methods in heat transfer, 20h, university of Tlemcen, 2012-2013.
Educational activities for industrials
- Solid mechanic: 24h/year, UTBM, 1990-1994
- Heat exchangers: 30h, Peugeot (Sochaux), 2002-03.
- Thermodynamic: 20h/year, UTBM, 2001- 2004
- Heat conduction in composite material: 30h, Von Roll, 2013
Administrative responsibilities
- Administration Council, Univ. of Technology of Compiegne (UTC): 1989-1992.
- Vice-Chairman of the Administration Council of UTBM: 1989-1992.
- Committee of experts: UTC, 1990-1992.
- Administration Council: UTBM, 1992-1996.
- Scientific Council: UTBM, 1992-2000 and 2006-2012.
- Officer of Mechanical Engineering and Design Department: 1995-1999.
- Committee of experts: UTBM, 1990-2003 and 2006-2009.
- Committee of experts: Univ. of Haute Alsace (UHA), 2007-2009.
- Selection Committee, UTBM, 2011-2012.
- Council of Systems and Transports laboratory, UTBM, 2009-2011.
- Council of IRTES Institute, UTBM, since September 2012
- Acdemic Council of Comue, UBFC, 2016