Risk due to impact forces
These last years, the methodology for considering aircraft impacts (with various sizes and weights) in design or assessment of nuclear power reactors has been developed. If the modelling of the structural behavior of reinforced concrete structures is quite suitable close to the impact point, it is not adequately taken into account for adjacent walls.
One then fails to adequately predict the damage state and serviceability level of shells after an impact. To address the needs of EDF and improve its models, this research focuses on the characterization of energy dissipation for propagation of high frequency vibratory phenomena caused by the impact of a projectile on a reinforced concrete structure. The goal is to better include in the models the dissipative behavior of impacts.
This work is led within the international benchmark « Improving the Robutness of Assessmnt Methodologies for Structures Impacted by Missile (IRIS 3) coordinated by the Nuclear Energy Agency (NEA) within OECD and IRSN using full scale impact tests performed by the Technical Research Centre of Finland VTT. This work is carried out in collaboration with EDF R&D and EDF SEPTEN, ESTP Pole Renon. A PhD on this topic funded by ESTP Pôle Renon (contract with EDF SEPTEN and ESTP) has started in October, 2016 (Nicolas Vacca).
Contact : pierre.argoul@univ-eiffel.fr
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