MODELING STRATEGIES FOR DYNAMIC FINITE ELEMENT CASK ANALYSES

Year
2013
Author(s)
Uwe Zencker - BAM Federal Institute for Materials Research and Testing Berlin, Germany
Günter Wieser - BAM Federal Institute for Materials Research and Testing Berlin, Germany
Linan Qiao - BAM Federal Institute for Materials Research and Testing 12200 Berlin, Germany
Christian Protz - BAM Federal Institute for Materials Research and Testing Berlin, Germany
File Attachment
280.pdf460.59 KB
Abstract
The safety of transport packages may be demonstrated by numerical calculation of load scenarios defined in the IAEA regulations. Possible handling accidents of casks at interim storage sites or in a final repository are typically analyzed by dynamic finite element computations. In each case the investigated load scenario must be transferred into a mathematical model. Secondly the mathematical model must be transferred into a numerical model. Reliable finite element models should be developed by assembling verified sub-models of components. The finite element mesh, material modeling, initial and boundary conditions, contact definitions, and time integration as well as the benefit of pre- and post-calculations are discussed. The paper presents lessons learnt from modeling dynamic test scenarios for finite element analyses over the years.