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Assessment of aged piping dissimilar metal weld integrity

Objective

ADIMEW will pride a unique large-scale verification of the performance of a defect-bearing dissimilar welds as found on primary circuit piping in many PWR plants. A test will be carried out on a specially prepared assembly of nuclear specification loaded at 300oC using a four point bending facility. The results will be used to improve procedures for assessment of stability and safety of aged welds of this type, an area not adequately covered by existing codes. Several critical aspects will be examined including the location of susceptible cracking sites, the role of residual stresses, material testing methods and analysis procedures. After evaluation of the results, recommendations will be formulated for improved codes and standards for use at European level. To accelerate their acceptance there will be a direct link with the EC Network for Evaluating Structural Components (NESC) for benchmarking and dissemination.

Funding Scheme

CSC - Cost-sharing contracts

Coordinator

ELECTRICITE DE FRANCE
Address
12-14,Avenue Dutriévoz 12-14
69628 Villeurbanne
France

Participants (9)

AEA TECHNOLOGY PLC
United Kingdom
Address
329,Harwell 329
OX11 0QJ Didcot,harwell,chilton
BAY ZOLTAN FOUNDATION FOR APPLIED RESEARCH
Hungary
Address
Igloi U. 2 Miskolctapolca
3519 Miskolc
COMMISSARIAT A L'ENERGIE ATOMIQUE
France
Address
Dmt/semt/lisn, Batiment 607
91191 Gif Sur Yvette
COMMISSION OF THE EUROPEAN COMMUNITIES
Netherlands
Address
Westerduinweg 3
1755 ZG Petten
PAUL SCHERRER INSTITUT
Switzerland
Address

5232 Villigen
SERCO LTD
United Kingdom
Address
The Quadrant 404, Birchwood Park
WA3 6AT Warrington
SOCIETE FRAMATOME
France
Address
Tour Framatome
92084 Paris La Defense
TECHNICAL RESEARCH CENTRE OF FINLAND
Finland
Address
3,Kemistintie 3
02044 Espoo
THE WELDING INSTITUTE
United Kingdom
Address
Granta Park, Great Abington
CB1 6AL Cambridge