Researcher identifiers

  • IdHAL : abderrahim-michrafy
  • IdRef : 034013482
Number of documents


Abderrahim MICHRAFY



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.



  • 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). 



Elastic plastic behaviour Modeling; Computer Science; Finite Element Methods; Die & Roll Compaction process; hot rolling process; Material Characterizations

Journal articles25 documents

Conference papers22 documents

  • Vivien Esnault, Mohamed Michrafy, Driss Oulahna, Abderrahim Michrafy. The flow of fine powders during roll compaction. SFGP 2013 -14ème Congrès français en génie des procédés, Oct 2013, Lyon, France. Art.2013120501-8 p. ⟨hal-01769829⟩
  • Vivien Esnault, Daniel Heitzmann, Driss Oulahna, Alain de Ryck, Abderrahim Michrafy. Modeling of aerated powder consolidation in roller compaction process. PARTEC 2013 -International Congress on Particle Technology, Apr 2013, Nürnberg, Germany. 4 p. ⟨hal-01741803⟩
  • Vivien Esnault, Daniel Heitzmann, Mohamed Michrafy, Driss Oulahna, Abderrahim Michrafy. Understanding effects of air pressure in fine powders during roll compaction process. 6th International granulation workshop, Jun 2013, Sheffield, United Kingdom. 12 p. ⟨hal-01741804⟩
  • Abderrahim Michrafy, Driss Oulahna, Olivier Lecoq. Analyse expérimentale de délaminage de comprimés bi-couches. STP 2012 -7ème Colloque Science et Technologie des Poudres, Jul 2012, Toulouse, France. 8 p. ⟨hal-01768690⟩
  • Driss Oulahna, Romain Collet, Abderrahim Michrafy, Alain de Ryck. Behavior of wetted insoluble granular materials : effect of particle shape. 5th International granulation workshop, Jun 2011, Lausanne, Switzerland. 14 p. ⟨hal-01757375⟩
  • Atef Dhaouadi, Abderrahim Michrafy, Driss Oulahna. Caractérisation mécanique de granulés d'alumine en compression uniaxiale. Matériaux 2010, Oct 2010, Nantes, France. 8 p. ⟨hal-01768697⟩
  • Abderrahim Michrafy, Toma Mihai Chitu, Driss Oulahna. Modification of granular behavior by roller compaction. WCPT6 2010 -World Congress on Particle Technology, Apr 2010, Nuremberg, Germany. 4 p. ⟨hal-01753259⟩
  • Toma Mihai Chitu, Driss Oulahna, Mehrdji Hemati, Abderrahim Michrafy. Effect of process parameters and binder nature on the mechanical properties of granules obtained in a laboratory high shear mixer. WCPT6 2010 -World Congress on Particle Technology, Apr 2010, Nuremberg, Germany. 4 p. ⟨hal-01757389⟩
  • Harona Diarra, Abderrahim Michrafy, John A. Dodds, Mohamed Michrafy. Experimental and numerical analysis of homogenenity over strip width in roll compaction. 9th International symposium on agglomeration, Jun 2009, Sheffield, United Kingdom. 14 p. ⟨hal-01757394⟩
  • Abderrahim Michrafy, Harona Diarra, John A. Dodds, Mohamed Michrafy, Luc Penazzi. Analysis of strain stress state in roller compaction process. STPMF 2009 -Colloque Science et Technologie des Poudres & Matériaux Frittés, May 2009, Montpellier, France. 12 p. ⟨hal-01768700⟩
  • Harona Diarra, Abderrahim Michrafy, John A. Dodds, Denis Marty. Three-dimensional FEM analysis of rolling compaction of pharmaceutical excipients. PSA 2008 -Particulate Systems Analysis 2008, Sep 2008, Stratford-upon-Avon, United Kingdom. 5 p. ⟨hal-01753288⟩
  • Harona Diarra, Abderrahim Michrafy, John A. Dodds. Procédé de compactage à rouleaux : analyse de la pression d'alimentation. STP 2007 -Science et technologie des poudres, May 2007, Albi, France. 6 p. ⟨hal-01769868⟩
  • Zineb Hatim, Abderrahim Michrafy, Mostafa Elassfouri. Stoichiometry and particles morphology effects on the aptitude to the compaction of apatitic structure powders. STP 2007 -Science et technologie des poudres, May 2007, Albi, France. 6 p. ⟨hal-01769870⟩
  • Abderrahim Michrafy, Moulay S. Kadiri, John A. Dodds. Resistance de comprimés binaires concaves : effet de courbure et proportions de mélange. STP 2007 -Science et technologie des poudres, May 2007, Albi, France. 6 p. ⟨hal-01769874⟩
  • Abderrahim Michrafy, John A. Dodds, Moulay S. Kadiri. Modelling of pharmaceutical powder compaction and its sensitivity to powder properties and tablet curvature. 11ème congrès de la société française de génie des procédés, Oct 2007, Saint Etienne, France. 7 p. ⟨hal-01769875⟩
  • Harona Diarra, Abderrahim Michrafy, John A. Dodds, Michel Baron. Analyse de la pression d'alimentation dans le procédé de compactage à rouleaux. 11ème congrès de la société française de génie des procédés, Oct 2007, Saint Etienne, France. 7 p. ⟨hal-01768715⟩
  • Gilles Dour, Farid Medjedoub, Gabriel Diaconu, Denis Girardin, Abderrahim Michrafy, et al.. Size effect in transient thermal fatigue testing and thermo-mechanical screening of coatings. TOOL 06 -7th International tooling conference, May 2006, Torino, Italy. p.555-562. ⟨hal-01781645⟩
  • Abderrahim Michrafy, S. Haas, Moulay S. Kadiri, John A. Dodds. Effects of die and punches temperature on the compaction of pharmaceutical powders. 8th International Symposium on Agglomeration, Mar 2005, Bangkok, Thailand. p.311-316. ⟨hal-01782619⟩
  • Gabriel Diaconu, Tahar Loulou, Abderrahim Michrafy, Farhad Rezai-Aria, Denis Girardin, et al.. A normalized approach to optimize the coating/substrate couples with regards to thermal stresses : conditions for thermo-mechanical screening. 6th International Congress on Thermal Stresses, May 2005, Vienna, Austria. p.111-114. ⟨hal-01782621⟩
  • Moulay S. Kadiri, Abderrahim Michrafy, John A. Dodds. Compression des poudres pharmaceutiques : analyse expérimentale et numérique de la distribution de densité. 4ème Colloque Science et technologie des poudres -Récents progrès en génie des procédés, May 2004, Compiègne, France. 9 p. ⟨hal-01780099⟩
  • Abderrahim Michrafy, John A. Dodds, Moulay S. Kadiri. Wall friction in the compaction of pharmaceutical powders : measurement and effect on the density distribution. APHYS-2003 international conference, Oct 2003, Badajov, Spain. 5 p. ⟨hal-01781688⟩
  • S. Broucaret, Abderrahim Michrafy, Bruno Ladevie, Gilles Dour. Heat transfer in a gravity casting die influence of process parameters. Modeling of casting, welding and advanced solidification processes IX, Aug 2000, Aachen, Germany. p.705-712. ⟨hal-01796860⟩

Book sections1 document

  • Abderrahim Michrafy, A. Zavaliangos, John Cunningham. Dry granulation process modeling. 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⟩. ⟨hal-01693629⟩