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Abderrahim Michrafy

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*PERSONAL SUMMARY* In 1988, I obtained my Ph.D. in applied mathematics from the University of Bordeaux, France. Then, I joined the CNRS (French Council Research Centre) in 1989 as Research Engineer in modeling and computation science. Since, I successively worked for three French laboratories in chemical and mechanical fields (LRGP, Nancy, ICA- Albi and RAPSODEE, Albi). In 2011, I successfully defended my HDR (Habilitation à Diriger des Recherches). My research is focused on mechanical material behaviours (continuum solid mechanics and particulate solids) and on finite element modeling (FEM) of forming process. Currently in the lab. of Particulate Solids and Processes of Ecole des Mines (RAPSODEE Albi, France), I develop research work on die and roll-compaction processes for pharmaceutical and mineral applications. I was involved in different projects (regional, national and European) and in a patent filing. I supervised PhD, postdoctoral, M. Sc students and gave training courses in high graduate schools and Universities in FEM modeling and Pharmaceutical Processes. A part of publication concerned damage modeling of composite material and hot rolling process, but the most scientific production focused on powder technology and dry granulation/compaction process with more forty publications and book chapters. *MAIN INDUSTRIAL PROJECTS AND TRAINING PROGRAMMES* - 2018-2021: Project funded by an Industrial Partner and the local Government of the region Midi-Pyrenees, on the damage modelling during the compaction of energetic material - 2017- 2020: Project funded by the Ecole des Mines and CNRS on the thermo-mechanical modeling aspects in compaction process of sensitive pharmaceutical powders to the temperature - 2013 - 2016: Partner of the European Project IPROCOM (the development of in silico process models for roll compaction - FP7-PEOPLE-ITN), which consists of 10 full partners and 15 ESR & ER - 2013 - 2015: Partner of an innovative project funded by a pharmaceutical company, a food company and the regional government. A new product for both health and nutrition was developed as part of this project, which resulted in a patent filing. - 2012 - 2013: Partner of industrial project with Lafarge Company on milling process modeling of mineral products - 2006 - 2008: Project IMCAT (Innovative Materials for CO2 Capture by Adsorption Technology) funded by the National Research Agency (ANR) and coordinated by Air-Liquid Company. Three laboratories (RAPSODEE, ICMUB, ENSCP) were implied in this research program to develop MOFs (Metal-Organic Frameworks) materials for catalysis applications. - 2005 - 2006: Collaborative project with the Chair of Process Engineering TU München–Weihenstephan funded by “le centre inter-universitaire Franco-Bavarois”. This project concerned “Numerical modeling of rolling compaction process” and gave opportunity to PhD students to have secondment in France and Germany (Dr. Stefan Haas & Dr. Daniela Herold from the lab. of Prof. K. Sommer). *AREAS OF EXPERTISE* *Elastic plastic behaviour Modeling; Computer Science; Finite Element Methods; Die & Roll Compaction process; hot rolling process; Material Characterizations*

Publications

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Modelling powder compaction with consideration of a deep grooved punch

G. Alonso Aruffo , Mohammed Michrafy , Driss Oulahna , Abderrahim Michrafy
Powder Technology, 2022, 395, pp.681-694. ⟨10.1016/j.powtec.2021.10.012⟩
Journal articles hal-03391568v1
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Analysis of densification mechanisms of dry granulated materials

S. Uniyal , Lucia Perez-Gandarillas , Mohammed Michrafy , Driss Oulahna , Abderrahim Michrafy
Advanced Powder Technology, 2020, 31 (1), pp.351-358. ⟨10.1016/j.apt.2019.10.027⟩
Journal articles hal-02372250v1
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A combined DEM & FEM approach for modelling roll compaction process

Alon Mazor , Luca Orefice , Abderrahim Michrafy , Alain de Ryck , Johannes Khinast
Powder Technology, 2018, 337, pp.3-16. ⟨10.1016/j.powtec.2017.04.053⟩
Journal articles hal-01848201v1
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Compaction properties of dry granulated powders based on Drucker–Prager Cap model

Lucia Perez-Gandarillas , Alon Mazor , Olivier Lecoq , Abderrahim Michrafy
Powder Technology, 2018, 337, pp.43-50. ⟨10.1016/j.powtec.2017.12.057⟩
Journal articles hal-01700665v1
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Computational intelligence modelling of pharmaceutical tabletting processes using bio-inspired optimization algorithms

Hossam Zawbaa , Serena Schiano , Lucia Perez-Gandarillas , Crina Grosan , Abderrahim Michrafy
Advanced Powder Technology, 2018, 29 (12), p.2966-2977. ⟨10.1016/j.apt.2018.11.008⟩
Journal articles hal-01944490v1
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Computational intelligence models to predict porosity of tablets using minimum features

Mohammad Hassan Khalid , Pezhman Kazemi , Lucia Perez-Gandarillas , Abderrahim Michrafy , Jakub Szlek
Drug Design, Development and Therapy, 2017, 11, pp.193-202. ⟨10.2147/DDDT.S119432⟩
Journal articles hal-01619260v1
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Effect of roll compactor sealing system designs: A finite element analysis

Alon Mazor , Lucia Perez-Gandarillas , Alain de Ryck , Abderrahim Michrafy
Powder Technology, 2016, 289, pp.21-30. ⟨10.1016/j.powtec.2015.11.039⟩
Journal articles hal-01609015v1
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Effect of roll-compaction and milling conditions on granules and tablet properties

Lucia Perez-Gandarillas , Ana Perez-Gago , Alon Mazor , Peter Kleinebudde , Olivier Lecoq
European Journal of Pharmaceutics and Biopharmaceutics, 2016, 106 (SI), pp.38-49. ⟨10.1016/j.ejpb.2016.05.020⟩
Journal articles hal-01609014v1
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An analytical model for the prediction of hot roll temperatures in a hot rolling process

Vincent Velay , Abderrahim Michrafy
Materials Science and Engineering Technology / Materialwissenschaft und Werkstofftechnik, 2016, 47 (12), p. 1202-1215. ⟨10.1002/mawe.201600554⟩
Journal articles hal-01609107v1
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Pharmaceutical Particle Technology

Chuan-Yu Wu , Abderrahim Michrafy , Aleksander Mendyk , Satoru Watano
Powder Technology, 2015, 285 (SI), p. 1. ⟨10.1016/j.powtec.2015.09.014⟩
Journal articles hal-01611003v1
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Compaction behaviour of dry granulated binary mixtures

Lucia Perez-Gandarillas , Alon Mazor , David Souriou , Olivier Lecoq , Abderrahim Michrafy
Powder Technology, 2015, 285, pp.62-67. ⟨10.1016/j.powtec.2015.05.003⟩
Journal articles hal-01611086v1
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Processing fine powders by roll press

Vivien Esnault , Abderrahim Michrafy , Daniel Heitzmann , Mohamed Michrafy , Driss Oulahna
Powder Technology, 2015, 270 (Part B, SI), p. 484-489. ⟨10.1016/j.powtec.2014.07.046⟩
Journal articles hal-01609219v1
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The effect of punch's shape on die compaction of pharmaceutical powders

Moulay S. Kadiri , Abderrahim Michrafy
Powder Technology, 2013, 239, pp.467-477. ⟨10.1016/j.powtec.2013.02.022⟩
Journal articles hal-01688099v1
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Numerical simulation of roll compaction of aerated powders

Vivien Esnault , D. Heitzmann , Mohammed Michrafy , Driss Oulahna , Abderrahim Michrafy
Chemical Engineering Science, 2013, 104, pp.717-726. ⟨10.1016/j.ces.2013.09.031⟩
Journal articles hal-00936759v1
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Experimental and numerical analyses of homogeneity over strip width in roll compaction

Abderrahim Michrafy , El. Diarra , John A. Dodds , Mohammed Michrafy
Powder Technology, 2011, 206 (1-2, SI), pp.154-160. ⟨10.1016/j.powtec.2010.04.030⟩
Journal articles hal-01680751v1
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Analysis of strain stress state in roller compaction process

Abderrahim Michrafy , Harona Diarra , John A. Dodds , Mohammed Michrafy , Luc Penazzi
Powder Technology, 2011, 208 (2, SI), pp.417-422. ⟨10.1016/j.powtec.2010.08.037⟩
Journal articles hal-01680752v1
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Compaction behavior of binary mixtures

Abderrahim Michrafy , Harona Diarra , John A. Dodds
Powder Technology, 2009, 190 (1-2), pp.146-151. ⟨10.1016/j.powtec.2008.04.066⟩
Journal articles hal-01680756v1
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Stoichiometry and particle morphology effects on the aptitude to compaction of apatitic structure powders

Z. Hatim , Abderrahim Michrafy , M. Elassfouri , F. Abida
Powder Technology, 2009, 190 (1-2, SI), pp.210-214. ⟨10.1016/j.powtec.2008.04.040⟩
Journal articles hal-01718078v1
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Size effect in transient thermal fatigue testing and thermo-mechanical screening of coatings

Gilles Dour , Farid Medjedoub , Gabriel Diaconu , Denis Girardin , Abderrahim Michrafy
International Journal of Microstructure and Materials Properties, 2008, 3 (2-3), pp.311-325. ⟨10.1504/IJMMP.2008.018737⟩
Journal articles hal-01847804v1
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Predictions of tensile strength of binary tablets using linear and power law mixing rules

Abderrahim Michrafy , Mohammed Michrafy , Moulay S. Kadiri , John A. Dodds
International Journal of Pharmaceutics, 2007, 333 (1-2), pp.118-126. ⟨10.1016/j.ijpharm.2006.10.008⟩
Journal articles hal-01680765v1
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The effects of ambient temperature on the compaction of pharmaceutical powders

Abderrahim Michrafy , S Haas , Moulay S. Kadiri , K Sommer , John A. Dodds
Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering, 2006, 220 (E1), pp.1-6. ⟨10.1243/095440805X73636⟩
Journal articles hal-01680767v1
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Pharmaceutical powders compaction: Experimental and numerical analysis of the density distribution

Moulay S. Kadiri , Abderrahim Michrafy , John A. Dodds
Powder Technology, 2005, 157 (1-3), pp.176-182. ⟨10.1016/j.powtec.2005.05.025⟩
Journal articles hal-01829580v1
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Wall friction in the compaction of pharmaceutical powders: measurement and effect on the density distribution

Abderrahim Michrafy , John A. Dodds , Moulay S. Kadiri
Powder Technology, 2004, 148 (1), pp.53-55. ⟨10.1016/j.powtec.2004.09.021⟩
Journal articles hal-01680773v1
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Wall friction and its effects on the density distribution in the compaction of pharmaceutical excipients

Abderrahim Michrafy , Moulay S. Kadiri , John A. Dodds
Chemical Engineering Research and Design, 2003, 81 (A8), pp.946-952. ⟨10.1205/026387603322482185⟩
Journal articles hal-01680780v1
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Modelling the compaction behaviour of powders: application to pharmaceutical powders

Abderrahim Michrafy , D Ringenbacher , P Tchoreloff
Powder Technology, 2002, 127 (3), pp.257-266. ⟨10.1016/S0032-5910(02)00119-5⟩
Journal articles hal-01718086v1
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Heat transfer and thermo-mechanical stresses in a gravity casting die - Influence of process parameters

S Broucaret , Abderrahim Michrafy , Gilles Dour
Journal of Materials Processing Technology, 2001, 110 (2), pp.211-217. ⟨10.1016/S0924-0136(00)00881-5⟩
Journal articles hal-01718087v1
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Rôle du poteyage et de la température initiale du moule sur les sollicitations thermomécaniques des moules permanents de fonderie

Gilles Dour , A. Broucaret , Alexis Oudin , Abderrahim Michrafy , Farhad Rezai-Aria
Matériaux et Techniques, 2000, n° Hors série, p.45-50. ⟨10.1051/mattech/200088120045s⟩
Journal articles hal-01847830v1
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On general constitutive equations involving damage

Patrick Laborde , Abderrahim Michrafy
European Journal of Mechanics - A/Solids, 1991, 10 (2), pp.213-237
Journal articles hal-03789559v1
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Etude d'un modèle avec endommagement

Patrick Laborde , Abderrahim Michrafy
Comptes rendus de l'Académie des sciences. Série I, Mathématique, 1990, 310 (1), pp.613-616
Journal articles hal-03789722v1

Understanding effects of air pressure in fine powders during roll compaction process

Vivien Esnault , Daniel Heitzmann , Mohamed Michrafy , Driss Oulahna , Abderrahim Michrafy
6th International granulation workshop, Jun 2013, Sheffield, United Kingdom. 12 p
Conference papers hal-01741804v1

The flow of fine powders during roll compaction

Vivien Esnault , Mohamed Michrafy , Driss Oulahna , Abderrahim Michrafy
SFGP 2013 -14ème Congrès français en génie des procédés, Oct 2013, Lyon, France. Art.2013120501-8 p
Conference papers hal-01769829v1

Modeling of aerated powder consolidation in roller compaction process

Vivien Esnault , Daniel Heitzmann , Driss Oulahna , Alain de Ryck , Abderrahim Michrafy
PARTEC 2013 -International Congress on Particle Technology, Apr 2013, Nürnberg, Germany. 4 p
Conference papers hal-01741803v1

Analyse expérimentale de délaminage de comprimés bi-couches

Abderrahim Michrafy , Driss Oulahna , Olivier Lecoq
STP 2012 -7ème Colloque Science et Technologie des Poudres, Jul 2012, Toulouse, France. 8 p
Conference papers hal-01768690v1

Behavior of wetted insoluble granular materials : effect of particle shape

Driss Oulahna , Romain Collet , Abderrahim Michrafy , Alain de Ryck
5th International granulation workshop, Jun 2011, Lausanne, Switzerland. 14 p
Conference papers hal-01757375v1

Modification of granular behavior by roller compaction

Abderrahim Michrafy , Toma Mihai Chitu , Driss Oulahna
WCPT6 2010 -World Congress on Particle Technology, Apr 2010, Nuremberg, Germany. 4 p
Conference papers hal-01753259v1

Caractérisation mécanique de granulés d'alumine en compression uniaxiale

Atef Dhaouadi , Abderrahim Michrafy , Driss Oulahna
Matériaux 2010, Oct 2010, Nantes, France. 8 p
Conference papers hal-01768697v1

Effect of process parameters and binder nature on the mechanical properties of granules obtained in a laboratory high shear mixer

Toma Mihai Chitu , Driss Oulahna , Mehrdji Hemati , Abderrahim Michrafy
WCPT6 2010 -World Congress on Particle Technology, Apr 2010, Nuremberg, Germany. 4 p
Conference papers hal-01757389v1

Experimental and numerical analysis of homogenenity over strip width in roll compaction

Harona Diarra , Abderrahim Michrafy , John A. Dodds , Mohamed Michrafy
9th International symposium on agglomeration, Jun 2009, Sheffield, United Kingdom. 14 p
Conference papers hal-01757394v1

Analysis of strain stress state in roller compaction process

Abderrahim Michrafy , Harona Diarra , John A. Dodds , Mohamed Michrafy , Luc Penazzi
STPMF 2009 -Colloque Science et Technologie des Poudres & Matériaux Frittés, May 2009, Montpellier, France. 12 p
Conference papers hal-01768700v1

Three-dimensional FEM analysis of rolling compaction of pharmaceutical excipients

Harona Diarra , Abderrahim Michrafy , John A. Dodds , Denis Marty
PSA 2008 -Particulate Systems Analysis 2008, Sep 2008, Stratford-upon-Avon, United Kingdom. 5 p
Conference papers hal-01753288v1

Stoichiometry and particles morphology effects on the aptitude to the compaction of apatitic structure powders

Zineb Hatim , Abderrahim Michrafy , Mostafa Elassfouri , F. Abida
STP 2007 -Science et technologie des poudres, May 2007, Albi, France. 6 p
Conference papers hal-01769870v1

Analyse de la pression d'alimentation dans le procédé de compactage à rouleaux

Harona Diarra , Abderrahim Michrafy , John A. Dodds
11ème congrès de la société française de génie des procédés, Oct 2007, Saint Etienne, France. 7 p
Conference papers hal-01768715v1

Modelling of pharmaceutical powder compaction and its sensitivity to powder properties and tablet curvature

Abderrahim Michrafy , John A. Dodds , Moulay S. Kadiri
11ème congrès de la société française de génie des procédés, Oct 2007, Saint Etienne, France. 7 p
Conference papers hal-01769875v1

Resistance de comprimés binaires concaves : effet de courbure et proportions de mélange

Abderrahim Michrafy , Moulay S. Kadiri , John A. Dodds
STP 2007 -Science et technologie des poudres, May 2007, Albi, France. 6 p
Conference papers hal-01769874v1

Procédé de compactage à rouleaux : analyse de la pression d'alimentation

Harona Diarra , Abderrahim Michrafy , John A. Dodds
STP 2007 -Science et technologie des poudres, May 2007, Albi, France. 6 p
Conference papers hal-01769868v1

Size effect in transient thermal fatigue testing and thermo-mechanical screening of coatings

Gilles Dour , Farid Medjedoub , Gabriel Diaconu , Denis Girardin , Abderrahim Michrafy
TOOL 06 -7th International tooling conference, May 2006, Torino, Italy. p.555-562
Conference papers hal-01781645v1

Effects of die and punches temperature on the compaction of pharmaceutical powders

Abderrahim Michrafy , S. Haas , Moulay S. Kadiri , John A. Dodds
8th International Symposium on Agglomeration, Mar 2005, Bangkok, Thailand. p.311-316
Conference papers hal-01782619v1

A normalized approach to optimize the coating/substrate couples with regards to thermal stresses : conditions for thermo-mechanical screening

Gabriel Diaconu , Tahar Loulou , Abderrahim Michrafy , Farhad Rezai-Aria , Denis Girardin
6th International Congress on Thermal Stresses, May 2005, Vienna, Austria. p.111-114
Conference papers hal-01782621v1

Compression des poudres pharmaceutiques : analyse expérimentale et numérique de la distribution de densité

Moulay S. Kadiri , Abderrahim Michrafy , John A. Dodds
4ème Colloque Science et technologie des poudres -Récents progrès en génie des procédés, May 2004, Compiègne, France. 9 p
Conference papers hal-01780099v1

Wall friction in the compaction of pharmaceutical powders : measurement and effect on the density distribution

Abderrahim Michrafy , John A. Dodds , Moulay S. Kadiri
APHYS-2003 international conference, Oct 2003, Badajov, Spain. 5 p
Conference papers hal-01781688v1

Heat transfer in a gravity casting die influence of process parameters

S. Broucaret , Abderrahim Michrafy , Bruno Ladevie , Gilles Dour
Modeling of casting, welding and advanced solidification processes IX, Aug 2000, Aachen, Germany. p.705-712
Conference papers hal-01796860v1

Dry granulation process modeling

Abderrahim Michrafy , A. Zavaliangos , John Cunningham
Predictive Modeling of Pharmaceutical Unit Operations (chap. 4), Elsevier, p.71-97, 2017, Woodhead publishing series in biomedicine ; 87, 978-0-08-100154-7. ⟨10.1016/B978-0-08-100154-7.00004-1⟩
Book sections hal-01693629v1
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Approche continue appliquée à la mise en forme de matériaux granulaires.

Abderrahim Michrafy
Génie des procédés. Université Paul Sabatier - Toulouse III, 2011
Habilitation à diriger des recherches tel-04418803v1