WRC 296 Fitness-For-Service Criteria For Pipeline Girth-Weld Quality

Bulletin / Circular by Welding Research Council, Inc., 1984

R. P. Reed, M. B. Kasen, H. I. McHenry, C. M. Fortunko, D. T. Read

Full Description

Criteria have been developed for applying fitness-for-service analyses to flaws in girth welds. A critical crack-opening-displacement elastic-plastic fracture mechanics model was developed and experimentally verified. Procedures for constructing flaw acceptance curves based on this model are provided. A significantly improved ultrasonic method for detecting and dimensioning significant weld flaws was developed.

The probability of crack initiation from blunt flaws was shown to be very low under severe low-cycle fatigue. Suggestions are offered for technical implementation of field inspection procedures and for practical implementation of the flaw acceptance criteria.

Product Details

Published: 1984 Number of Pages: 86 File Size: 1 file , 3.5 MB