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Pr Laurent Delannay Chercheur qualifié du FNRS Université catholique de Louvain CESAME - MEMA av. Georges Lemaître, 4 B-1348 Louvain-la-Neuve, Belgium Phone: +32 10 47 2356 Fax: +32 10 47 2180 E-mail: laurent.delannay@uclouvain.be |
Field of Research:
Advanced forming processes must be assisted by numerical modeling in order to increase the strength of metal components while reducing their weight and giving them ever more complex shapes. The highly heterogeneous microstructures of (TRIP-assisted) multiphase steels, titanium alloys or aluminum alloys makes of the development of a predictive model an important scientific challenge.
Our research addresses this technological issue through a multiscale modeling of the mechanical behavior of the parts being formed. The models developed are based on crystal plasticity theory. We use finite element modeling to distribute strains over the crystalline aggregate, but also computationally-cheaper techniques termed "LAMEL" or "Multisite". Predictions are compared to experimental measurements of texture, anisotropy and strength at the microscopic (e.g. EBSD) and the macroscopic scale.