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Advanced Structural Integrity Assessment Tools for Safe Long Term Operation

Advanced Structural Integrity Assessment Tools for Safe Long Term Operation

Objective

NFRP 1: 2016-2017 notes that “A number of current Generation II reactors should continue operating for a few decades and Generation III should still be in operation one century from now.” This requires a systematic ageing management procedure for justifying their safe long term operation (LTO). One fundamental part in this process is to demonstrate the integrity of the nuclear power plant components. The required safety margins are determined by considering various degradation and ageing mechanisms and postulated defects. This project focuses on open technology gaps, identified in the NUGENIA road map, related to piping components, not covered by other ongoing projects.

Specifically this project will focus on developing:

o innovative quantitative methodologies to transfer laboratory material properties to assess the structural integrity of large piping components,
o an enhanced treatment of weld residual stresses when subjected to long term operation,
o advanced simulation tools based on fracture mechanics methods using physically based mechanistic models,
o improved engineering methods to assess components under long term operation taking into account specific operational demands,
o integrated probabilistic assessment methods to reveal uncertainties and justify safety margins.

ATLAS+ will have a significant impact on the safety of operational Generation II and III nuclear power plants. The project will demonstrate and quantify inherent safety margins introduced by the conservative approaches used during design and dictated by codes and standards employed through-out the life of the plant. The outcomes from ATLAS+ will therefore support the long term operation of nuclear power plants. This will be achieved by using more advanced and realistic scientific methods to assess the integrity of piping. The project will provide evidence to support the methods by carrying out large scale tests using original piping materials.

Coordinator

Teknologian tutkimuskeskus VTT Oy

Address

Vuorimiehentie 3
02150 Espoo

Finland

Activity type

Higher or Secondary Education Establishments

EU Contribution

€ 532 207

Participants (18)

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AREVA GMBH

Germany

EU Contribution

€ 497 147

AREVA NP SAS

France

EU Contribution

€ 272 500

ELECTRICITE DE FRANCE

France

EU Contribution

€ 416 250

WOOD NUCLEAR LIMITED

United Kingdom

EU Contribution

€ 193 664

UNIVERSITY OF BRISTOL

United Kingdom

EU Contribution

€ 225 067

COMMISSARIAT A L ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES

France

EU Contribution

€ 155 875

THE UNIVERSITY OF MANCHESTER

United Kingdom

EU Contribution

€ 223 681

KIWA INSPECTA TECHNOLOGY AB

Sweden

EU Contribution

€ 519 810

CENTRO DE INVESTIGACIONES ENERGETICAS, MEDIOAMBIENTALES Y TECNOLOGICAS-CIEMAT

Spain

EU Contribution

€ 67 087

TECNATOM S.A.

Spain

EU Contribution

€ 46 813

BAY ZOLTAN ALKALMAZOTT KUTATASI KOZHASZNU NONPROFIT KFT.

Hungary

EU Contribution

€ 248 375

MAGYAR TUDOMANYOS AKADEMIA ENERGIATUDOMANYI KUTATOKOZPONT

Hungary

EU Contribution

€ 76 250

INSTITUT JOZEF STEFAN

Slovenia

EU Contribution

€ 46 875

NUCLEAR RESEARCH AND CONSULTANCY GROUP

Netherlands

EU Contribution

€ 95 438

THE OPEN UNIVERSITY

United Kingdom

EU Contribution

€ 75 368

UNIVERSITAET STUTTGART

Germany

EU Contribution

€ 49 375

INSTITUT DE RADIOPROTECTION ET DE SURETE NUCLEAIRE

France

EU Contribution

€ 87 972

ASSOCIATION POUR LA RECHERCHE ET LE DEVELOPPEMENT DES METHODES ET PROCESSUS INDUSTRIELS

France

EU Contribution

€ 101 109,92

Project information

Grant agreement ID: 754589

Status

Ongoing project

  • Start date

    1 June 2017

  • End date

    31 May 2021

Funded under:

H2020-Euratom-1.1.

  • Overall budget:

    € 7 145 698,59

  • EU contribution

    € 3 930 863,92

Coordinated by:

Teknologian tutkimuskeskus VTT Oy

Finland