Description du sujet de thèse

Hierarchical porous materials present unique functional and mechanical properties resulting from an intricate organization of matter at different scales in their structure, from the nanometer scale to the millimeter scale. The interplay between the mechanisms of deformation at the different length scales raises many scientific questions, starting with the establishment of proper methods and models to characterize and predict the mechanical behavior.
In this collaborative research project between the Mateis lab (INSA Lyon), Leibniz-IWT (Germany) and the ElyTMaX lab (CNRS, Tohoku University, Japan), hierarchical porous materials will be elaborated by a unique combination of additive manufacturing and liquid metal dealloying techniques.
The PhD candidate will investigate the micro-mechanical behavior of the materials by a combination of non-destructive 3D imaging (X-ray computed tomography), in situ micro-mechanical testing and finite element modeling. He will establish the experimental protocols, conduct the experimental campaigns and analyze their results, while developing in parallel the models to describe the effects of hierarchical porosity on the mechanical behavior.
Strong collaboration with the 2nd PhD student of the project is expected, who will be in charge of sample elaboration at Leibniz-IWT, Germany.

For this PhD project, we are seeking a student with the following qualifications:
• Engineering school or Master's degree with a specialization in materials science and/or mechanics.
• Basics knowledge in experimental and numerical mechanics is required.
• Basic programming skills are necessary
• Hands-on experience in finite element modeling will be considered a plus.
• Strong English skills (oral and written) are required.

Contexte de travail

MATEIS laboratory is a « Unité Mixte de Recherche » CNRS – INSA Lyon (UMR 5510). It gathers around 80 permanent researchers and associated technical staff and about 70 PhD students. It is one of the largest laboratories at INSA-Lyon. The Metal group of Mateis, where the PhD will be held, has a long experience in microstructural and mechanical characterization of metallic alloys in 2D and 3D, their evolution during thermo-mechanical treatments and the link between microstructure and mechanical properties using a coupled experimental and modelling approach.

Le poste se situe dans un secteur relevant de la protection du potentiel scientifique et technique (PPST), et nécessite donc, conformément à la réglementation, que votre arrivée soit autorisée par l'autorité compétente du MESR.

Contraintes et risques

None