EVALUATION ON STRUCTURAL INTEGRITY OF \" MSF\" TRANSPORT AND STORAGE CASK BASED ON RESULTS OF DROP TEST

Drop tests were conducted with a full scale drop test model for MSF cask (Mitsubishi Spent Fuel cask). The drop attitudes were specified as slap down drop followed by 1m puncture test and vertical drop, which could affect sealing performance at lid parts. To evaluate a structural integrity of MSF cask fleet, an analysis model for drop test which can simulate acceleration and strain time histories at body and lid during drop impact was established