Emmanuel Cottanceau will publicly defend his thesis entitled "Numerical simulation of the assembly process for flexible cables with large displacements."
Supervised by Olivier Thomas and Philippe Veron, Emmanuel Cottanceau will defend his thesis entitled "Numerical simulation of the assembly process for flexible cables with large displacements" on Tuesday, April 10, 2018, at 2:00 p.m., on the Arts et Métiers campus Arts et Métiers Lille.
Composition of the jury
Florence Bertails-Descoubes - INRIA Grenoble Rhône-Alpes: Rapporteur
Olivier Brüls - University of Liège: Rapporteur
Corrado Maurini - Pierre and Marie Curie University: Examiner
Stéphane Bourgeois - Ecole Centrale de Marseille: Examiner
Olivier Thomas - Ecole Nationale Supérieure des Arts et Métiers Lille: Examiner
Marc Alochet - Renault Technocentre
Renaud Deligny - Renault Technocentre
Thesis summary
With the rise of onboard electronics, electrical cables have become an important part of automotive components, while space on board has continued to decrease. Their flexibility requires predicting their deformation during assembly in order to avoid contact with other vehicle parts and damage. Current tools do not allow for a sufficiently realistic and accurate prediction of their behavior, which is necessary in a very limited work volume. The assembly steps are therefore validated using costly real-life models. This thesis aims to improve the numerical simulation of these flexible parts. We propose a 3D simulation code based on a geometrically accurate beam model solved using the finite element method. Its originality lies in the coupling of quaternions to model 3D rotations and the asymptotic numerical method for the continuation of the nonlinear system, which gives it great robustness. A test bench for identifying the homogenized parameters required for the numerical model and its validation by comparing the final geometry and the equilibrium path is presented. Combined with analytical developments on beam models with shear, the tests lead to a critical evaluation of the 3D Timoshenko model for representing cable strands.
Practical information
April 10, 2018, at 2:00 p.m.
Campus Arts et Métiers Lille - 8 boulevard Louis XIV, 59800, LILLE
Room 48A, La Rochefoulcault
