Statistical evaluation of the through-thickness copper variation and the KIc and KIa curves for reactor pressure vessels

F. A. Simonen, M. A. Khaleel

Research output: Contribution to journalConference article


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.

Original languageEnglish
Pages (from-to)247-265
Number of pages19
JournalAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
Publication statusPublished - 1 Dec 1995
EventProceedings of the 1995 Joint ASME/JSME Pressure Vessels and Piping Conference - Honolulu, HI, USA
Duration: 23 Jul 199527 Jul 1995


ASJC Scopus subject areas

  • Mechanical Engineering

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