Journal of Nuclear Fuel Cycle and Waste Technology

A test of the 1/3 scale model was conducted to verify the tip-over analysis of a dry concrete storage cask under a hypothetical accident condition. The tip-over analysis was executed using the velocity at each point as the initial conditions of the model just before the impact. The initial velocity was determined from the initial angular velocity, which would make the equivalent kinetic energy to the potential energy. To confirm the structural integrity of the canister, the visual testing and the nondetective testings such as Liquid Penetrant testing and Ultrasonic Testing were conducted. The lid of a storage cask was plastically deformed near the impact point. The structural integrity of storage cask was maintained. To verify the tip-over analysis the strains and the accelerations acquired by the tipover test were compared with those by the analyses. The results of the analysis were larger than the test results about two times.

Keywords

Spent nuclear fuel,Dry storage cask,Tip-over analysis,Initial angular velocity,Test for verifying