A statistical evaluation of the through-thickness copper variation for welds in reactor pressure vessels is described. The historical basis for the static and arrest fracture toughness (KIc and KIa) equations used in the VISA-II code. Copper variability in welds due to fabrication procedure with copper contents begin randomly distributed, and variable from one location to another through the thickness of the vessel. Copper contents at few locations through the thickness were found to exceed the 0.4 percent upper limit of the VISA-II code. The data also suggest that the mean copper content varies systematically through the thickness.
|Number of pages||19|
|Journal||American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP|
|Publication status||Published - 1 Dec 1995|
|Event||Proceedings of the 1995 Joint ASME/JSME Pressure Vessels and Piping Conference - Honolulu, HI, USA|
Duration: 23 Jul 1995 → 27 Jul 1995
ASJC Scopus subject areas
- Mechanical Engineering