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Limit strains for severe accident conditions

Limit strains for severe accident conditions

Objective

For severe accidents large structural deformations should be allowed with strain s reaching a certain fraction of the failure strains. But knowledge on the deformation capacity of relevant structures is lacking. Therefore the failure strains of essential reactor components are to be investigated. To apply small-scale model tests to reactor dimensions, size effects on the local failure strains are of special interest. Test families are defined with specimens of typical strain distributions caused by uniaxial and biaxial static and dynamic loads. Within one test family the geometries are similar, but the size is varied up to re actor dimensions. To deepen the understanding of structural degradation and fracture and to allow extrapolations, advanced computational methods will be developed and validated. Based on the results admissible strains will be proposed. This provides a means to show that existing reactors are able to withstand severe accidents.

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Coordinator

FORSCHUNGSZENTRUM KARLSRUHE GMBH - TECHNIK UND UMWELT

Address

Germany

Administrative Contact

Helmut HERMANN (Dr)

Participants (12)

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ARISTOTLE UNIVERSITY OF THESSALONIKI

Greece

COMMISSION OF THE EUROPEAN COMMUNITIES

Italy

EQUIPOS NUCLEARES SA

Spain

FRAMATOME ANP GMBH

Germany

ITALIAN AGENCY FOR NEW TECHNOLOGY, ENERGY AND THE ENVIRONMENT

Italy

JOZEF STEFAN INSTITUTE

Slovenia

NUCLEAR RESEARCH AND CONSULTANCY GROUP

Netherlands

PAUL SCHERRER INSTITUT

Switzerland

SOCIETE FRAMATOME

France

STAATLICHE MATERIALPRUEFUNGSANSTALT

Germany

SWISS FEDERAL LABORATORIES FOR MATERIALS TESTING AND RESEARCH

Switzerland

TECHNICAL RESEARCH CENTRE OF FINLAND

Finland

Project information

Grant agreement ID: FIKS-CT-1999-00012

  • Start date

    1 February 2000

  • End date

    31 January 2003

Funded under:

FP5-EAECTP C

  • Overall budget:

    € 2 685 000

  • EU contribution

    € 950 000

Coordinated by:

FORSCHUNGSZENTRUM KARLSRUHE GMBH - TECHNIK UND UMWELT

Germany