CUED Publications database

Flaw sizing in pipes using long-range guided wave testing

Sanderson, RM and Catton, PP (2011) Flaw sizing in pipes using long-range guided wave testing. AIP Conference Proceedings, 1335. pp. 689-696. ISSN 0094-243X

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Abstract

The absence of adequate inspection data from difficult-to-access areas on pipelines, such as cased-road crossings, makes determination of fitness for continued service and compliance with increasingly stringent regulatory requirements problematic. Screening for corrosion using long-range guided wave testing is a relatively new inspection technique. The complexity of the possible modes of vibration means the technique can be difficult to implement effectively but this also means that it has great potential for both detecting and characterizing flaws. The ability to determine flaw size would enable the direct application of standard procedures for determining fitness-for-service, such as ASME B31G, RSTRENG, or equivalent for tens of metres of pipeline from a single inspection location. This paper presents a new technique for flaw sizing using guided wave inspection data. The technique has been developed using finite element models and experimentally validated on 6'' Schedule 40 steel pipe. Some basic fitness-for-service assessments have been carried out using the measured values and the maximum allowable operating pressure was accurately determined. © 2011 American Institute of Physics.

Item Type: Article
Uncontrolled Keywords: Flaw Sizing Guided Waves Inspection Long-Range Pipe
Subjects: UNSPECIFIED
Divisions: Div E > Manufacturing Systems
Depositing User: Cron Job
Date Deposited: 07 Mar 2014 11:50
Last Modified: 08 Dec 2014 02:34
DOI: 10.1063/1.3591916