Structural Response of Large Penetrations and Closures for Containment Vessels Subjected to Loadings Beyond Design Basis.

摘要

This report summarizes the analyses work performed by Argonne National Laboratory on three representative nuclear power plant penetrations for severe accident loads beyond the design basis conditions. These include analyses of an equipment hatch for a steel containment, a BWR-Mark II drywell head and a bellows connection. The objectives of the analyses were to identify the methodology required to simulate the response of the penetrations and determine their leakage potential under severe accident loads. This report provides the details of the analytical methodology used and the results obtained from the analyses.