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Journal Articles Nuclear Engineering and Design Year : 2018

Numerical strategy for dynamic simulation of impacts on SFR fuel pins and experimental validation

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Abstract

Fuel pins are the first containment barriers of a sodium fast reactor, and their integrities have to be preserved during a dynamical load. Pins are included in an assembly with mounting gaps, to allow them to swell during the life cycle of the reactor; so they are subjected to shock and contact at the early ages. A numerical method has been chosen with the aim to determine the dynamical behavior of a large system with a lot of contacts. The validity of the method is confronted for a basic issue to semi-analytical solution. Then, dynamical behavior of an isolated pin has been studied experimentally and numerically, with a non-linear representative contact law. Numerical method is appropriate to assess contact forces caused for pins.
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Dates and versions

cea-02339668 , version 1 (04-11-2019)

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T. Catterou, V. Blanc, G. Ricciardi, S. Bourgeois, B. Cochelin. Numerical strategy for dynamic simulation of impacts on SFR fuel pins and experimental validation. Nuclear Engineering and Design, 2018, 340, pp.73-85. ⟨10.1016/j.nucengdes.2018.09.021⟩. ⟨cea-02339668⟩
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