PhD Candidate
Aspirant FNRS (Research Fellow)

pjoris@ulg.ac.be
Université de Liège - Aérospatiale et Mécanique/LTAS-MN2L
Quartier Polytech 1 (office +2/541)
Allée de la Découverte, 9
B-4000 Liège, BELGIUM

M.Sc.Eng., 2014 - Physics Engineering, Université de Liège, Belgium
Master Thesis: Comparison of constitutive models of composite materials in Metafor and Abaqus.
Supervisor: Prof. J-P. Ponthot.

2014 - now : PhD Candidate (FNRS grant), University of Liège, Belgium

2014 : Visiting Research Associate, Queen's Belfast University, Northern Ireland

PhD : Adaptive numerical simulation of damage and fracture in solid mechanics. Coupling h-adaptivity and Arbitrary Lagrangian Eulerian formulation.

Keywords : Computational Mechanics, Finite Elements Method (FEM), Large Deformation, Automatic Remeshing, Adaptive Mesh Refinement, Data Transfer, Arbitrary Lagrangian Eulerian Formulation (ALE), Metal Forming, Forging, Friction Stir Welding (FSW), Composite Materials.

** Short Description** : The goal of my PhD is to improve the modelling of damage and fracture in complex materials under large deformation using the in-house nonlinear Finite Element software Metafor. The strategy adopted consists in developing an automatic h-adaptive mesh refinement algorithm called “fission-fusion”, where elements can be split or merged when needed. This algorithm will then be combined with the already operational erosion algorithm and Arbitrary Lagrangian Eulerian formulation, and with a multiscale finite element squared approach currently under development.

The first objective in the completion of my PhD was to establish a fully automatic remeshing procedure which could be used to simulate a wide variety of mechanical processes where mesh distortion are significant.

** Forging **