The main topics investigated by this working group include: the integrity of metal components; the integrity and ageing of concrete structures; and the seismic behaviour of structures and components.
Lifetime management remains an important topic for the working group. A status report on risk-informed, in-service inspection (RI-ISI) methodologies was completed, and the group is now actively working on a benchmark study on RI-ISI methodologies. Reactor pressure vessel integrity is being addressed through a benchmark on probabilistic structural integrity methods.
An extensive report on concrete containment integrity was issued during 2006. The workshop on corrosion and long-term performance of reinforced concrete in nuclear waste facilities held in Cadarache, France on 27-30 March 2006 provided insights on structural and regulatory issues.
The workshop on seismic input motions, incorporating recent geological studies was held in Japan on 15-17 November 2005 and completed a series of workshops on seismic input motions. Methods to calculate seismic input motions for nuclear power plants and related uncertainties continued to be explored through close co-operation with geologists and seismologists.
The integrity of metal components and structures sub-group's recent activities include:
The integrity and ageing of concrete structures sub-group has recently been focusing on the preparation of a strategy report that identifies and ranks challenges for concrete structures for operating and new and advanced reactors.
The seismic behaviour of structures and components sub-group's recent activities include:
These pages were last updated on 16 June 2008.