Community Research and Development Information Service - CORDIS

FP7

On plastic collapse analysis of KBS-3 canister mock-up

Funded under: FP7-EURATOM

Abstract

This report describes an in-depth finite element simulation of a spent fuel canister for geological disposal loaded in iso-static pressure until plastic collapse. The canister consists of a copper overpack and a ductile cast iron insert with steel cassettes where the spent fuel is placed. The higgly non-linear finite element analysis is based on the explicit formulation and includes large deformations, non-linear material behaviour and contact between the canister components. The analysis includes comparison between two-and three dimensional models and assessment of the different geometrical features such as corner radius of the cassette, cassette off-set, different bonding/debonding conditions between insert and steel cassette. The analysis shows that the bonding cassette/insert has a large impact on the collapse load. Two large-scale mock-ups test that had been performed earlier are also simulated by the developed finite element models. There is a very good agreement between measured and computed deformations versus applied load and collapse load.

Additional information

Authors: MARTIN O, European Commission, Joint Research Centre, Institute for Energy, Petten (NL);NILSSON K-F, European Commission, Joint Research Centre, Institute for Energy, Petten (NL);JAKSIC N, European Commission, Joint Research Centre, Institute for Energy, Petten (NL)
Bibliographic Reference: EUR 23079 EN (2007), 40 pp. Free of charge
Availability: http://bookshop.europa.eu/is-bin/INTERSHOP.enfinity/WFS/EU-Bookshop-Site/en_GB/-/EUR/ViewPublication-Start?PublicationKey=LDNA23079 (Catalogue Number: LD-NA-23079-EN-C)
Record Number: 200910270 / Last updated on: 2009-09-22
Category: PUBLICATION
Original language: en
Available languages: en