lazyxEM
Coupled approache discradaptive continuous/etc for formatting
Numerical simulation tools are now an integral part of industrial product and process development. In the case of forming, they can predict the final shape of the part, the risk of breakage or local defects, or tool wear due to thermal and frictional stresses.
.Numerical simulation can also be used to simulate the volume of particles generated when braking a car or railway vehicle, and thus to optimize systems for capturing these particles in order to reduce their rate suspended in the air.
.However, the scale of the models implemented for these types of simulations is often large in relation to the area of interest to be observed: from a few square millimeters on a shaping process, to a few cubic micrometers in the case of braking particles.
The aim of this thesis project is to set up a numerical platform capable of accounting for the discontinuous and non-linear phenomena brought into play during extreme situations such as those encountered in metal forming. To this end, an adaptive coupled Finite Elements - Discrete Elements model is envisaged in order to gain in computational performance and also in the quality of the description of the phenomena. This represents a real challenge, and is currently one of the scientific obstacles limiting the use of these coupled approaches. This work will also form part of a co-development with the joint CNRS SWIT'Lab laboratory, winner of the AAP Région "équipe mixte laboratoire-entreprise" in 2017.