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Cea - Commissariat à l'Energie Atomique
Monitoring Ductile Fracture Using Full Field Measurement Techniques To Build A Testing Database H/F
Posted on Nov. 27, 2024
- Gif-Sur-Yvette, France
- 0 - 0 USD (yearly)
- Internship
Position description
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Contract
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Contract duration (months)
Job description
material deformation and crack growth on test specimens, with the goal of building a reliable
testing database for characterization of ductile fracture. A key aspect of the project is quantifying uncertainties, particularly those caused by measurement noise. During this internship you will :
Perform full-field measurements on test specimens using with Digital Image Correlation (DIC) to capture real-time, high-resolution data on both deformation and crack propagation across the entire surface of the specimen ;
- Extract displacements maps across the specimen surface to derivate strain maps and crack growth ;
- Focus on managing uncertainties in the data. You will learn techniques to reduce the influence of measurement noise, ensuring the resulting database is as reliable and accurate as possible. This will include understanding the sources of noise, such as equipment limitations, and how to mitigate them ;
- Work with data processing tools to filter, refine, and validate the experimental data, ensuring that the final database reflects the true behavior of the material.
for material testing based on full field measurements.
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PhD opportunity
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General information
Organisation
The French Alternative Energies and Atomic Energy Commission (CEA) is a key player in research, development and innovation in four main areas :- defence and security,
- nuclear energy (fission and fusion),
- technological research for industry,
- fundamental research in the physical sciences and life sciences.
Drawing on its widely acknowledged expertise, and thanks to its 16000 technicians, engineers, researchers and staff, the CEA actively participates in collaborative projects with a large number of academic and industrial partners.
The CEA is established in ten centers spread throughout France
Reference
2024-34413Description de l'unité
Le SEMT (Service d'Études Mécaniques et Thermiques), doté de 2 plateformes d'essai et d'outils de simulation qu'il développe (MANTA, EUROPLEXUS, CAST3M), est l'unité de compétence de la DES en mécanique, thermique, et interaction fluide-structure. Il participe aux projets du CEA, dont un grand nombre en coopération avec EDF, FRAMATOME, IRSN, ainsi qu'à des programmes de recherche nationaux et européens.
Au sein du SEMT, le Laboratoire d'Études de Dynamique (DYN) est en charge d'actions d'études et de recherche dans les domaines de la dynamique des structures, en interaction éventuelle avec les fluides : vibrations, vibrations sous écoulement, et dynamique rapide. Un des atouts du laboratoire est de disposer de compétences et de moyens couvrant la modélisation physique, la simulation numérique et les essais (analytiques ou de validation) sur ses installations propres (plateforme RESEDA), en lien avec les activités industrielles de ses partenaires historiques (EDF et FRAMATOME).
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