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19/04/2016

Prix FEM/TMS Young Leader International Scolar décerné à Henry PROUDHON

chercheur au Centre des Matériaux de MINES ParisTech

Prix FEM/TMS Young Leader International Scolar décerné à Henry PROUDHON Henry PROUDHON reçoit le FEM/TMS Young Leader International Scolar award des mains de Patrice E.A. Turchi

Lors de la conférence TMS 2016 qui s'est tenue à Nashville (Tennessee, USA) du 14 au 18 février 2016, Henry PROUDHON, chercheur au Centre des Matériaux de MINES ParisTech a reçu le FEMS/TMS Young Leader International Scholar award pour sa conférence intitulée Finite element simulations of short fatigue crack propagation in three dimensional microstructures

Lecture Title: “Finite Element Simulations of Short Fatigue Crack Propagation in Three Dimensional Microstructures Obtained by X-ray Tomography”


About the Topic: Combining in situ fatigue loading with absorption and diffraction contrast tomography, unique data sets can now be obtained to study the effect of the local microstructure on the very first stages of fatigue crack propagation. Crystal plasticity finite element simulations can now advantageously take experimental data as input to study the physical mechanisms at work. Two situations will be presented. First, the initiation of fatigue cracks on second phase particles in a commercial Al- Cu-Li alloy via 3D finite element calculations are compared to experimental observations. A criterion to asses if the crack will grow crystallographically is proposed. Second, the growth of a short fatigue crack in a beta-titanium polycrystalline sample imaged by X-ray tomography is simulated. The model uses a damage indicator to assess the local crack growth rate and direction; remeshing routines are used to achieve propagation over several grains and the results are compared to the tomographic experiment.

Prix FEM/TMS Young Leader International Scolar dcern Henry PROUDHON - MINES ParisTech

Agenda Centre des Matériaux MINES ParisTech - MINES ParisTech
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