[2D09-13] Development of Fast Reactor Fuel

[2D12] Advancement of detailed core bowing analysis code for fast reactor

(3)Validity of calculation code by IAEA benchmark problem of the duct bowing experiment

*Koji Kusumi¹, Hirokazu Ohta¹, Kazuya Ohgama², Hidemasa Yamano², Satoshi Futagami² (1. CRIEPI, 2. JAEA)

Keywords:Fast reactor, Duct deformation, Passive safety, A detailed shell-model, Numerical simulation

IAEA benchmark analysis was conducted to verify the detailed core bowing analysis code (ARKAS_cellule) being developed at CRIEPI.The duct bowing and contact stress of each duct were analyzed in case of the single thermal bowing experiment that set to a temperature distribution to the duct surface and, the thermal bowing experiment of 10 ducts row with both ends fixed.By comparison with the experimental results, it was good agreement that the detailed core bowing analysis code can roughly simulate the duct bowing and the duct contact stress.