Abstract:
This calculation uses the LS-DYNA finite element software to determine the sensitivity of the structural response of a Naval waste package to variations in its internal dimensions and canister mass. Full three-dimensional Finite Element Representations were developed to simulate two specific impact scenarios: a corner drop and a tip-over from an elevated surface. The analysis compares models with different dimensional configurations (License Application, Site Recommendation, and maximum dimensions) and canister weights to assess their effect on the resulting through-wall stress intensities in the outer corrosion barrier. A mesh verification study was conducted by refining the finite element mesh, for example by increasing the number of elements through the wall thickness from 8 to 11, to confirm that the results were not sensitive to mesh density. The results from the finite element simulations for both the corner drop and tip-over events demonstrate that the varying inner dimensions have a negligible effect on the calculated stresses, and that increasing the canister mass to its maximum value has only a slight impact on the structural response.
