Fast Reactors and Accelerator Driven Systems Knowledge Base

Conference Article: Seismic analysis of Monju and Rapsodie LMFBR core mock-ups

Fontaine, B.; Gantenbein, F. (CEA Centre d'Etudes de Saclay, 91 - Gif-sur-Yvette (France))

Abstract

Sophisticated methods have been developed to study the seismic response of LMFBR cores. These methods, mainly based on FEM beam models take into account non linearities and fluid structure interaction. The associated numerical techniques consist essentially in the computer code CASTEM 2000, developed by CEA/DMT. In order to validate these methods, a long series of experiments were performed on core mock-ups loaded by seismic excitations. Several tests, performed in air and in water ( simulating sodium ) were applied on Rapsodie and Monju cores. The aim of this paper is to present and to compare the experimental results and calculation through assembly displacements and shock forces.

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key words: air; c codes; comparative evaluations; computer codes; experimental data; fluid-structure interactions; monju reactor; rapsodie reactor; reactor cores; response functions; seismic effects; theoretical data; water
Reference:
Final research co-ordination meeting on intercomparison of liquid metal fast reactor seismic analysis codes. Bologna (Italy). 30 May - 2 Jun 1995
International Atomic Energy Agency, Vienna (Austria)
IAEA-TECDOC--882, pp:291-305