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Article

Title: Verifying the Safety of a Radioactive Waste Container With...

Author: Scott, Jeff Article Type: Product Analysis
Source: NASA Tech Briefs, v29 n7 p49(3) Publication Date: Jul 2005
  ISSN: 0145-319X
  Illustrations: Output Samples
URL of Publication: http://www.nasatech.com

Duratek has used ALGOR finite element analysis (FEA) software to verify the IP-2 glovebox (Industrial Packaging Type 2) container in a project required for the decommissioning of the U.S. Department of Energy Hanford Site, which is an inactive nuclear facility. A contaminated apparatus called a glovebox had to be removed and sent to the onsite environmental Restoration Disposal Facility (ERDF). Duratek, a provider of radioactive waste disposal solutions, designed the IP-2 container, which had to meet stringent regulatory safety standards for shielding, containment, and structural strength. Duratek did a simulation as part of its work in verification of the glovebox's structural integrity. A two-foot drop test is specified in the Code of Federal Regulations (49 CRF 173.465, Type A Packaging Tests). FEA was used for design verification, including nonlinear simulations such as drop tests, and mechanical event simulation (MES) software was used to demonstrate compliance with federal regulations, including motion and results, such as impact, buckling, and permanent deformation. The goal of the analysis was to find out if the container maintained containment after a two foot drop in its most fragile orientation. A CAD model was used to simulation drop testing with MES. Material properties for steel were defined for the container with selections from a built-in library. Results evaluation was done, and presentation tools included numerical results, contour displays, graphs, and animated replays of the event. Corner plasticity deformed as expected, but gasket sealing surfaces did not display sufficiently to break the seal.

Special Features: Output Samples

Products:
FEA (Finite Element Analysis)

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