Community Research and Development Information Service - CORDIS

Abstract

The Compas project is concerned with the structural performance of metal overpacks which may be used to encapsulate vitrified high-level waste forms before disposal in deep geological repositories. This document describes the activities performed between June and August 1989 forming the advanced test work phase of this project. This is the culmination of two years' analysis and test work to demonstrate whether the analytical ability exists to model containers subjected to realistic loads. Three mild steel containers were designed and manufactured to be one-third scale models of a realistic HLW container, modified to represent the effect of anisotropic loading and to facilitate testing. The containers were tested under a uniform external pressure and all failed by buckling in the mid-body region. The outer surface of each container was comprehensively strain-gauged to provide strain history data at all positions of interest. In parallel with the test work, Compas project partners, from five different European countries, independently modelled the behaviour of each of the containers using their computer codes to predict the failure pressure and produce strain history data at a number of specified locations. The first axisymmetric container was well modelled but predictions for the remaining two non-axisymmetric containers were much more varied, with differences of up to 50% occurring between failure predictions and test data.

Additional information

Authors: OVE ARUP & PARTNERS, Ove Arup & Partners, London (GB)
Bibliographic Reference: EUR 12702 EN (1990) 48 pp., FS, ECU 5
Availability: (2)
ISBN: ISBN 92-826-1445-X
Record Number: 199011104 / Last updated on: 1994-12-01
Category: PUBLICATION
Original language: en
Available languages: en