Abstract
The dynamic response of different water-cooled liquid Li 17 Pb 83 breeder blanket modules has been calculated to investigate the integrity of these modules under conditions of coolant tube rupture. Numerical calculations with the code PISCES were carried out taking into account the fluid-structure interaction and the elasto-plastic behaviour of the structural material. The results show that for inert coolant characteristics the proposed conceptual designs for INTOR and NET have sufficient resistance against the pressure shock waves created by a coolant tube rupture, but when taking into account energy release due to chemical reaction of water with LiPb-alloy, up to doubling of the wall thickness has to be envisaged to guarantee structural reliability.
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