Dynamic Analysis of 9975 Shipping Package without Overpack Subjected to 55-FootDrop

摘要

This paper discusses the evaluation of the dynamic response of a 9975 shippingpackage subjected to a load of 55-foot lateral drop without its overpack structure (fiberboard and drum). The fiberboard impact absorbent material and drum were removed so as to demonstrate a sufficiently large margin of safety for the package containment vessels when subjected to the above loading. A nonlinear dynamic analysis was performed for a partial 9975 shipping package to evaluate the primary and secondary containment vessels structural response to a 55-foot drop. The structural integrity of the primary and secondary containment vessels are justified based on the analytical results in comparison with the stress criteria specified in the ASME Code, Section III, Appendix F for Level D service loads. height of 55 feet.