Design of Radioactive Material Shipping Packaging for Low-Velocity Puncture Resistance
Both the standards developed by the International Atomic Energy Agency (IAEA) and those contained in the U. S. federal regulations  stipulate that transport packagings containing large quantities of radioactive material, such as spent fuel from a nuclear power reactor or waste by-products from nuclear weapons programs, should be designed to resist a sequence of impact, puncture, fire, and water immersion conditions without harmful release of contents. A recent paper  has offered a perspective on the design of such packagings relative to the impact event - a 30-foot (9 m) drop onto an essentially unyielding target. In that paper, it was shown that modern tools of computational mechanics, incorporating elastic-plastic material response and finite strain kinematic descriptions, could be used efficiently for the iterative design of a monolithic steel containment system, including models for bolted closures, shear keys, and seals.
KeywordsFoam Shipping Rubber Hexagonal Ductility
Unable to display preview. Download preview PDF.
- 1.Title 10, Code of Federal Regulations, Part 7 (Jan. 1981).Google Scholar
- 2.Charman, C.M., Grenier, R.B., and Nickell, R.E., “Large Deformation Inelastic Analysis of Impact for Shipping Casks,” to be published in Comp. Meth. Appl. Mech. Engr. (1982).Google Scholar
- 3.Sakamoto, et al., “An Experimental Study on Puncture Resistance of Spent Fuel Shipping Casks by Drop Impact Tests,” Proceedings, 4th International Symposium on Packaging and Transportation of Radioactive Materials, September 22–27, 1974, Miami Beach, Florida, pp. 262–276.Google Scholar
- 6.Larder, R.A. and Arthur, D., “Puncture of Shielded Radioactive Material Shipping Containers. Part I - Analysis and Results. Part II - Static and Dynamic Tests of Laminated Plates,” NUR EG/CR-0930, UCRL-52638, Lawrence Livermore Laboratory (December 1978).Google Scholar
- 7.Nelms, H.A., “Structural Analysis of Shipping Casks,” Report No. 0RNL-TM-1312, Vol.-3, Oak Ridge National Laboratory, Oak Ridge, Tennessee (1968)Google Scholar
- 8.Hallquist, J.O., “NIKE2D - An Implicit, Finite- Deformation, Finite Element Code for Analyzing the Static and Dynamic Response of Two-Dimensional Solids,” UCRL-52678, Lawrence Livermore National Laboratory, (1979).Google Scholar
- l0.Onat, E.T. and Haythornthwaite, R., “The Load-Carrying Capacity of Circular Plates at Large Deflections,” Trans. ASME, J. Appl. Mech., Vol. 23, No . 1, pp. 49–55 (March 1955).Google Scholar
- 11.Key, S.W., Beisinger, Z.E., and Krieg, R.D., “HONDO II - A Finite Element Code for the Large Deformation Dynamic Response of Axisymmetric Solids,” SAND78–0422, Sandia National Laboratories, Albuquerque, New Mexico (October 1978).Google Scholar