Design, Analysis, and Testing of Wood Filled Impact Limiters

In current practice, Type B packagings are generally provided with protective covers or impact limiters designed to protect the cask body during impact after the 30 foot free drop regulatory accident. Both the target and the typical shielded cask are essentially rigid . Theretore, the impact limiters must deform or crush in a precisely controlled manner to absorb the kinetic energy without producing excessive inertial loadings or contact forces on the cask body.