Abstract
HPIS Z101-2, “Assessment Procedure for Crack-Like Flaws in Pressure Equipment - Level 2” provides the methodology for the evaluation of fitness-for-service for detected flaws in structural components during in-service inspection. The reference stress solutions for fundamental structures with surface flaws are prepared in the present standard for the assessment of the acceptability of the detected flaws. From the viewpoint of the comprehension of available solutions for excessive conditions, additional reference stress solutions for single edge flaws in plate, axially through-wall flaws in cylinder, circumferentially through-wall flaws in cylinder, and through-wall flaws in sphere are required. In this paper, the appropriate reference stress solutions to be adopted for the above structures were investigated by comparing the existing solutions in referable codes⁄standards.
