The DIGIMU ANR Industrial Chair is one of five projects selected by ANR in their « Industrial Chairs – 2016 Edition » program. The DIGIMU Chair, handled by Armines MINES ParisTech, is co-funded by ANR and the industrial consortium composed of the companies ArcelorMittal, Framatome, ASCOMETAL, AUBERT & DUVAL, CEA and SAFRAN. This Chair is a project of the DIGIMU consortium constituted by the previous cited partners along with TIMET, CONSTELLIUM and TRANSVALOR companies. Moreover this ANR industrial Chair is supported by the PNB (Pôle de l’Industrie Nucléaire – Nuclear Industry Cluster) and Astech (Aeronautics / Space) competitiveness clusters.
What is the aim of DIGIMU?
DIGIMU aims to develop an innovative global framework for the simulation of microstructural changes during forming processes.
It is also the name of the software developed by the company TRANSVALOR in collaboration with the CEMEF and industrial partners of the DIGIMU Chair and consortium, which was first released commercially in 2016. This software is based on numerical developments in metallurgy made by the MSR (Metallurgy Structure Rheology) and MSM (MultiScale Modeling) CEMEF MINES ParisTech teams. All the numerical developments of the Chair will contribute to the development of this software.
Countless products involved in our every-day life rely on vital metal parts. Optimizing these parts requires a knowledge of how material properties change during forming operations. Although the understanding of the underlying metallurgical phenomena has improved thanks to the continuous progress of experimental facilities, the interest for increasingly fine and predictive simulations has been recently growing. In this emerging context of « digital materials science », the DIGIMU Chair and consortium 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 consortium. 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 ».
Moreover, if the DIGIMU Chair is mainly dedicated to recrystallization and solid-solid phase transformations for metallic materials. The transverse numerical framework developed by the DIGIMU consortium presents also large potential for the modeling of other physical mechanisms at the microscale (ductile damage, self-diffusion mechanisms as globularization or sintering, fracture…) and for a large range of materials (metallic or polymer composites, granular materials, …).
Who is DIGIMU for?
For the industry and, more specifically, the high-tech materials sector (transport, energy and complex infrastructures). The numerical tools covered by the DIGIMU Chair and consortium do in fact respond to the different pressing needs of the materials industry:
- target and define experimental campaigns more easily,
- improve the understanding of observed phenomena by numerically testing the physical assumptions put forward,
- improve the accuracy of predictions to constantly extend the thermomechanical fields of use of the targeted materials,
- build simplified and made to measure material models,
- improve responsiveness to new markets.
How do we do this with DIGIMU Consortium?
The ambitious goals of the DIGIMU Consortium imply a strong academic challenge. This consortium 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 consortium?
The DIGIMU consortium leads ambitious projects that relies above all on the skills of a team from the CEMEF to address the multiple issues and challenges involved. Thus, Nathalie Bozzolo, Co-Chairholder of the DIGIMU Chair, is responsible for the experimental works related to the understanding of the studied metallurgical mechanisms. In addition to Marc Bernacki, the DIGIMU Chairholder, fine scaled digital developments are also supervised by Daniel Pino Munoz and Thomas Toulorge. The validation of digital tools and the development of a multiscale strategy are supervised by Charbel Moussa and Marc Bernacki. Lastly, Sélim Kraria is responsible for the engineering/software platforms linked to the Chair and consortium.
And where does the industrial ANR Chair mechanism stand in all this?
The industrial ANR Chairs provide the time and scope to design major projects. Over a period of 5 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 Consortium in key figures
CEMEF MINES ParisTech / Armines, project owner
TRANSVALOR, software publisher
ArcelorMittal, Framatome, ASCOMETAL, AUBERT & DUVAL, CEA, CONSTELLIUM, SAFRAN, TIMET
Chair DIGIMU budget: 1.23 million euros
5 PhDs, 2 Post-docs, 3 MSc or MTech Internships
5 years: 2016-2021
1 piece of software