Post-doc “Amélioration de la modélisation du contact et de la friction dans les câbles en acier”

17 février 2020
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Steel wire ropes are largely used in many applications like suspension bridges, elevators, or mooring lines for the station keeping of offshore engineering structures. IFP Energies nouvelles (IFPEN) is concerned with the latter case for the development of floating offshore wind turbines technologies.

This post-doctorate follows the doctoral thesis [Bussolati, 2019] which was supervised by the Laboratoire de Mécanique et Technologie (LMT) of ENS Paris-Saclay and IFPEN. During this thesis, a user element has been developed in Abaqus Finite Element software for the detailed Finite Element of a wire rope metric scale segment. This model considers contact and friction between non parallel beams, each wire of the wire rope being modelled by a beam model. It takes advantage of the small sliding assumption to avoid time consuming update of the contact pairing during the deformation.Retour ligne automatique
Results are comparable with those obtained with large sliding algorithms but with a significant CPU time reduction.

The first objective of this post-doctorate is to extend the current user model in Abaqus, in order to include the case of the contact between parallel beams/wires. Retour ligne automatique
The second objective is to migrate the current Abaqus model to the open source code_aster software of EDF R&D . This action is important to allow the use of this model in future development of optimized and reliable design methodologies which require a very large number of simulations.Retour ligne automatique
Finally, the post-doctorate will work on improvement of the robustness and accuracy of the model.

To apply, send to Dr. Martin Guiton at martin.guiton@ifpen with email title “Application to wire rope model post-doctorate” : a detailed CV, a list of publications, a covering letter with recommendations, and for already defended theses, the defense report.