the DIGIMU Industrial ANR Chair


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The DIGIMU Industrial ANR Chair is one of five projects selected by the ANR in their "Industrial Chairs - 2016 Edition" program. It denotes success and recognises the quality of research inherent in the work of Marc Bernacki, Professor at MINES ParisTech, researcher at the CEMEF and holder of the DIGIMU Chair. And for him, it is above all else a scientific adventure full of challenges supporting a great human adventure!


Interviewed at the event, Marc Bernacki tells us about his project.


What is the aim of DIGIMU?


DIGIMU aims to develop an innovative global framework for the simulation of microstructural changes during metal forming processes. It is also the name of the software developed by the company TRANSVALOR, under the supervision of Amico Settefrati and Etienne Perchat, in collaboration with the CEMEF and industrial partners of the DIGIMU Chair (ArcelorMittal Industeel, AREVA, ASCOMETAL, Aubert & Duval, CEA, SAFRAN), which was first published commercially in 2016.

This software is based on numerical developments in metallurgy made by the MSR (Metallurgy Structure Rheology) and MSM (MultiScale Modeling) teams. All the numerical developments of the Chair will contribute to the development of this software(DIGIMU®).




The optimization of the vital metal parts of many materials around us requires a knowledge of matter and the changes to its properties during forming operations. In addition to understanding the underlying metallurgical phenomena, thanks to the growing improvement of experimental means, there is also now a growing interest for increasingly finer and predictive simulations of these mechanisms.


In this emerging context of "digital metallurgy", the DIGIMU Chair has two main objectives. The first concerns the development of an efficient multiscale numerical framework adapted to these questions. The second relates to the optimization of these techniques in terms of numerical cost and their validation by the industrial expertise at the heart of the DIGIMU Chair. For these digital tools, which are still quite news, it's a question of going beyond the usual framework of "simulation for industrialists" and moving towards "simulation by industrialists".



Who is DIGIMU for?

For the metallurgy industry and, more specifically, the high-tech materials sector (transport, energy and complex infrastructures). The numerical tools covered by the DIGIMU Chair do in fact respond to the different pressing needs of the metallurgy industry:

  • target and define experimental campaigns more easily,
  • improve the understanding of observed phenomena by numerically testing the metallurgical assumptions put forward,
  • improve the accuracy of metallurgical predictions to constantly extend the thermomechanical fields of use of the targeted materials,
  • build simplified and made to measure metallurgical models,
  • improve responsiveness to new markets.



How do we do this with DIGIMU?

The ambitious goals of the DIGIMU Chair imply a strong academic challenge. This Chair combines the development of innovative digital methods, expertise and feedback from the companies involved and software publisher skills to upgrade the DIGIMU® software in accordance with new developments.



What academic team for DIGIMU?

The DIGIMU Chair is an ambitious project that relies above all on the skills of a team from the CEMEF to address the multiple issues and challenges raised by the project.


Thus, Nathalie Bozzolo, Co-Chairholder, will be responsible for experimental work related to understanding the metallurgical mechanisms studied within the framework of the Chair. In addition to Marc Bernacki, the Chairholder, fine scaled digital developments will also be supervised by Daniel Pino Munoz and Thomas Toulorge. The validation of digital tools and the development of a multiscale strategy will be supervised by Charbel Moussa and Marc Bernacki. Lastly, Sélim Kraria, will be responsible for the engineering/software platform linked to the Chair.


And where does the industrial ANR Chair mechanism stand in all this?

LThe industrial ANR Chairs provide the time and scope to design major projects. Over a period of 4 years, it is possible to focus on thorough upstream work with ANR funding while responding to strong industry expectations thanks to financial support from industrial partners. This tool aims to offer both academic recognition for work completed and an efficient industrial framework for future research.

An Industrial ANR Chair can also promote education and training. This point is very much present in the DIGIMU Chair. Unfortunately metallurgy in France today has an aging image that attracts limited young talent. It is important to show that this field is rich in terms of innovations and challenges Courses/training sessions and seminars associated with the Chair will be offered every year.

The DIGIMU Chair will begin on October 1, 2016 for a period of 5 years, bringing together 8 partners, including 6 manufacturers (ArcelorMittal Industeel, AREVA, ASCOMETAL, Aubert & Duval, CEA, SAFRAN), 1 software publisher (TRANSVALOR) and the CEMEF, the only academic partner.


DIGIMU in key figures

8 partners:
CEMEF MINES ParisTech / Armines, project owner Transvalor, software publisher, ArcelorMittal, AREVA, ASCOMETAL, Aubert&Duval, CEA, SAFRAN

Budget : 1,23 million euros - 5 PhDs and 2 postodcs; 5 years: 2016-2021 and 1 piece of software

DIGIMU in short


DIGIMU in pictures


>> You will find all the simulations on video on the MSM team page

Marc Bernacki's career:

Marc Bernacki, PhD in Applied Mathematics from the Ecole des Ponts ParisTech end of 2005, arrived at the CEMEF as a post-doc student, he became "Tenure Track" in 2008. He has been a Professor at MINES ParisTech since 2015. In June 2016, the DIGIMU Chair project that he presented was retained by the ANR.

Marc deals with the theme of "digital material" at the CEMEF via two research teams: "MSR – Metallurgy, Structure, Rheology" led by Nathalie Bozzolo and "MSM – Multiscale Modeling" that he set up and has led since 2014. This theme is based on the development of innovative and robust numerical methods adapted to the description, on different scales, of the materials and their development during the forming process. His preferred area is HPC calculation in metallurgy on a polycrystal level. He has also been co-chairing the Joint Committee SF2M / MECAMAT "Digital Material" since its creation in 2014.
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