The objective of this study was to develop assessment and repair criteria for corroded areas in line pipe subjected to pressure-only loading. The report is a collection of new research for SNAM and prior research that has been conducted in the U.S.…
A literature review on the current industry understanding of mid-wall cracking and its detection was conducted. A summary of key factors influencing mid-wall cracking and modern integrity management approaches for the phenomenon are summarized. Based…
A critical evaluation of the various criteria for calculating the remaining strength of corroded pipe vas proceed. The criteria evaluated include the ANSI/ASHE B31G, the proposed modification of the S31G, and the EPR first -yield criterion. Both the…
The overall objective of these experiments is to examine the fracture initiation behavior of various kinds of defects in line pipe by determining the relationship between the size of a given defect and the level of internal pressure at which it will…
Included in this Data Record are the results of the laboratory tests that have been conducted on all of the pipes used in the program, the results of the West Jefferson fracture propagation experiments on short lengths, the results of the Athens…
An independent review of PRCI Project PR 201-927, "Pipeline Repair Mechanics". The review applies to the evaluation of plain dents and includes a model for related fitness for service.
The objectives of this program are to develop methods based on sound fundamental principles to estimate: (1) external corrosion rates, especially in CP shielded areas, and (2) internal corrosion rates by considering pipeline-relevant factors for gas…
The purpose of this assessment is to help identify promising inspection technologies best suited for further development as part of an integrated teaming effort between the robotic platform and sensor developers. This document is not intended to…
Describes the field testing program conducted during the period of July 26, 1962, to September 27, 1962, for the nondestructive inspection of 132.7 miles of steel transmission pipe. The purpose of the field operation was to realistically evaluate the…