Procedure for the Assessment of the Integrity of Nuclear Pressure Vessels and Piping Containing Defects. Final Report

摘要

This report presents results of a 20-month program to establish the validity of a simple engineering procedure to assess ductile fracture of nuclear pressure vessels and piping. The work was conducted at the Babcock and Wilcox Research and Development Division under the sponsorship of the Electric Power Research Institute. The accomplishments reported are: the extension of the R-6 method to include work-hardening materials; the validation of the engineering failure assessment approach through comparison with experimental test data and incremental plasticity finite element crack solutions; the extension of the engineering failure assessment approach to include secondary (thermal/residual) stresses; and the documentation of the procedures for the assessment of the integrity of nuclear-grade pressure vessels and piping. (ERA citation 07:053707)