This paper presents a three-dimensional finite element impact analysis of a hypothetical accident event for the preliminary design of a shipping cask which is used to transport radioactive waste by standard tractor-semitrailer truck. The nonlinear dynamic structural analysis code DYNA3D run on Sandia's Cray-1 computer was used to calculate the effects of the cask's closure-end impacting a rigid frictionless surface on an edge of its external impact limiter after a 30-foot fall. The center of gravity of the cask (made of 304 stainless steel and depleted uranium) was assumed to be directly above the impact point. An elastic-plastic material constitutive model was used to calculate the nonlinear response of the cask components to the transient loading. Interactive color graphics (PATRAN and MOVIE BYU) were used trhoughout the analysis, proving to be extermely helpful for generation and verification of the geometry and boundary conditions of the finite element model and for interpretation of the analysis results. Results from the calculations show the cask sustained large localized deformations. However, these were almost entirely confined to the impact limiters built into the cask. The closure sections were determined to remain intact, and leakage would not be expected after the event. As an example of a large three-dimensional finite element dynamic impact calculation, this analysis can serve as an excellent benchmark for computer aided design procedures. (ERA citation 10:025922)

  • Supplemental Notes:
    • Portions are Illegible in Microfiche Products.
  • Corporate Authors:

    Sandia National Laboratories

    P.O. Box 5800
    Albuquerque, NM  United States  87185
  • Authors:
    • Miller, J D
  • Publication Date: 1985

Media Info

  • Pagination: 11 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00450049
  • Record Type: Publication
  • Report/Paper Numbers: SAND-84-1899C, CONF-850670-15
  • Files: TRIS
  • Created Date: Aug 27 2004 8:55PM