1/3-Scale Model Testing Program*

This paper describes the drop testing of a one-third scale model transport cask ~::tern. Two casks were supplied by Transnuclear, Inc. (TN) to demonstrate dual purpose shipping/storage casks. These casks will be used to ship spent fuel from DOE's West Valley demonstration project in New York to the Idaho National Engineering Laboratory (INEL) for long term spent fuel dry storage demonstration. As part of the certification process, one-third scale model tests were performed to obtain experimental data Two 9-m (30-ft) drop tests were conducted on a mass model of the cask body and scaled balsa and redwood filled 1mpact limiters. In the first test, the cask system was tested in an end-on configuration. In the second test, the system was tested in a slap-down configuration where the axis of the cask was oriented at a 10 degree angle with the horizontal. Slapdown occurs for shallow angle drops where the primary impact at one end of the cask is followed by a secondary impact at the other end.