Development of advanced weld repair and assessment technologies will reduce unplanned outage time and thereby increase the economic performance and safety of the nuclear power industry. Optimised weld repair procedures and alternative post-weld treatments are to be developed that will shorten repair time-scales, minimise residual stresses and improve component life and integrity.
Assessment methodology for treating defects in residual stress fields will be refined to give more accurate and informed sentencing of defects in ageing plant; this will lead to fewer repairs (reducing outage times) and greater assurance of safety. State-of-art numerical methods will be used to develop the technologies and demonstrate structural integrity. Mock-up trials combined with conventional testing and advanced experimental methods(e.g. neutron diffraction, deep-hole drilling and laser strain scanning) will be used thunder write the new procedures. Guidelines for inclusion in Codes and Standards will deliver the new technologies to wider industry.
Funding SchemeCSC - Cost-sharing contracts
GL4 3RS Gloucester
1755 ZG Petten
71200 Le Creus0t
PA4 8DJ Renfrew
BS8 1TR Bristol, Clifton