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Aix-Marseille Université

PhD position in Development of vibrational technique for solicitation, measurement and interpretation to characterize the interactions between components of a complex structure in an extreme environment: Evaluation of their application to measurement in t

2022-06-30
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RESEARCH FIELD(S): Mechanics, Dynamics, Nuclear physics, Instrumentation

JOB LOCATION: 40% at the LMA (Laboratoire de Mécanique et d’acoustique, 4 impasse Nikola Tesla, 13013 Marseille), 60% à the CEA (Commissariat à L’Énergie Atomique, Cadarache, 13115 Saint-Paul-lez-Durance)

JOB DESCRIPTION :

Contract and salary: Aix-Marseille Université’s 3 year- PhD contract

Abstract

Pellet-Cladding Interaction (PCI) in a Light Water Reactor is one of the major concerns to guarantee fuel rod clad integrity of PWR nuclear reactor during operations needed to follow power grid demand. In order to forbid operations leading to clad failure, modeling capability to simulate the mechanism has improved through the years. And, Codes need more and more detailed and precise experimental data. Until now, those data result from dedicated irradiation programs, named “power ramp tests”, carried out in experimental devices in Material Testing Reactors, ISABELLE in OSIRIS in the past and the future ADELINE in the Jules Horowitz Reactor JHR.

There is currently no instrumentation for online PCI detection required for full validation of the modeling scheme.

A previous work has shown that it is possible to measure, under specific conditions, the effects of PCI on the vibrations of a nuclear fuel rod subjected to axial excitation of turbulent flow under external conditions. The objective of this PhD thesis will then be to develop a general process, including the three aspects, modelling, measurement and data processing, in order to improve existing methods capable of providing precise information on the mechanical interactions of the components of a complex structure in a very constrained context (limited space for instrumentation, high temperatures, irradiation, etc.).

QUALIFICATIONS/SKILLS/EDUCATION & RESEARCH REQUIREMENTS/DUTIES in Instrumentation, Mechanical Engineering (including structural dynamics aspects), Nuclear Physics

APPLICATION DEADLINE:

 30th June 2022

REQUESTED DOCUMENTS OF APPLICATION:

- Grades from last completed degree

- Cover letter & Curriculum Vitae

- Letter of recommendation if applicable

- The internship report at the end of the study possibly

CONTACT TO APPLY:

Please send any information request at the two following addresses:

isfin-direction@univ-amu.fr, lebon@lma.cnrs-mrs.fr

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Job details

Title
PhD position in Development of vibrational technique for solicitation, measurement and interpretation to characterize the interactions between components of a complex structure in an extreme environment: Evaluation of their application to measurement in t
Location
Jardin du Pharo 58, bd Charles Livon, France
Published
2021-10-11
Application deadline
2022-06-30
Job type
PhD
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Aix-Marseille Université is a research-intensive university of international standing, yet deeply rooted in its territory. Its reputation enjoys w...

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