
Jean-Lin DEQUIEDT
Scientist
I work in CEA since 2004 as a research engineer. I defended a PhD in Mechanics in 2002 in the field of shock waves in ductile metals. My research topics are:
- crystal plasticity modelling and the introduction of non-local effects: he investigates gradient plasticity formulations based on the dislocation density tensor;
- plastic strain instability and localization both at the macroscopic and microscopic scale : necking, shear banding. He analyzed heterogeneous deformation patterns linked with the segregation of slip systems at the grain scale;
- Fragmentation of shell cases under highly dynamic loading. I involved in various internal training courses in the field of Mechanics and I am assistant professor at Ecole des Mines de Paris.