STUDY OF THE MECHANICS OF A TRANSPORTATION ACCIDENT INVOLVING NATURAL URANIUM CONCENTRATE

An investigation was made of several damaged Rule 40 55-gallon drums that spilled natural uranium concentrate as the result of a truck accident. Spillage occurred when the drums were deformed such that the drum lids separated from the drums. It was concluded that this deformation was produced by quasi-static crush loading while the drums were still inside the truck. Laboratory tests that simulate this quasi-static crush loading were conducted on standard and modified drums. In terms of the crush force required to create an opening between the drum and lid, there was little difference between a standard Rule 40 drum and a standard 17C drum. However, a Rule 40 drum with a stiffened lid required almost twice the crush force to produce closure failure. The crush force to continue the deformation and increase the opening was greater for the 17C drum than for the standard Rule 40 drum, and it was greatest for the Rule 40 drum with the stiffened lid. It was found that drum integrity could be significantly improved by placing a neoprene bladder over the open end of the drum before the lid was attached. When the drum is crushed, the bladder covers the opening created between the drum and lid, thus preventing spillage of the contents of the drum.

  • Corporate Authors:

    SRI International

    333 Ravenswood Avenue
    Menlo Park, CA  United States  94025-3493

    Nuclear Regulatory Commission

    Division of Fuel Cycle and Material Safety, 1717 H Street, NW
    Washington, DC  United States  20555
  • Authors:
    • COLTON, J D
    • Emerson, R E
  • Publication Date: 1979-1

Media Info

  • Pagination: 68 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00192131
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: NUREG-CR-0558 Final Rpt.
  • Contract Numbers: NRC-02-78-076
  • Files: TRIS
  • Created Date: Jul 11 1979 12:00AM