ANALYSIS OF FAILURES IN CONCRETE CONTAINMENTS FINAL REPORTFunded under: JRC-REACTSAFE 4C
The function of containment, in an accident event, is to avoid the release of radioactive substances into the surroundings. Containment failure, therefore, is defined as the appearance of leak paths to the external environment, due to degradation of design conditions or structural failure with containment material break. This document is a survey of the state of the art of Containment Failure Analysis. It gives a detailed description of all failure mechanisms, indicating all the possible failure modes and their causes, from failure resulting from degradation of the meterials to structural failure and linear break failure. Following the description of failure modes, possible failure criteria are identified, with special emphasis on structural failure criteria. These criteria have been obtained not only from existing codes but also from the latest experimental results. A chapter has been dedicated exclusively to failure criteria in conventional structures, for the purpose of evaluating the possibility of application to the case of containment. As the structural behaviour of the containment building is very complex, it is not possible to define failure through a single parameter. The methodology for containment failure analysis should include prevailing load and material conditions, together with the behaviour of complex conditions such as the liner-anchorage-cracked concrete interaction.
Bibliographic Reference: EUR 12390 EN (1989) 156 PP., FS, ECU 12.50 THE OFFICE FOR OFFICIAL PUBLICATIONS OF THE EUROPEAN COMMUNITIES, L-2985 LUXEMBOURG
Record Number: 1989128028700 / Last updated on: 1991-05-15
Original language: EN