The Reflection of Guided Waves from Multiple Flaws in Pipes

Inspection of pipes and pipelines for corrosion is vital for their safe and cost effective operation. Ultrasonic guided wave inspection is a relatively new technique used for this. Recent research has advanced the technique so that it may be possible to characterise individual flaws, making guided w...

Full description

Saved in:
Bibliographic Details
Published in:Journal of nondestructive evaluation 2013-12, Vol.32 (4), p.384-397
Main Authors: Sanderson, Ruth M., Catton, P. P.
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Classical Mechanics
Computer simulation
Control
Corrosion
Defects
Dynamical Systems
Engineering
Inspection
Mathematical analysis
Mathematical models
Pipe
Reflection
Solid Mechanics
Vibration
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Inspection of pipes and pipelines for corrosion is vital for their safe and cost effective operation. Ultrasonic guided wave inspection is a relatively new technique used for this. Recent research has advanced the technique so that it may be possible to characterise individual flaws, making guided waves a potentially viable alternative to direct examination where internal in-line inspection (ILI) is not feasible. However, corrosion often occurs in clusters and the presence of one flaw could affect the signals received from subsequent flaws. Therefore, the issue of multiple flaws must be dealt with if flaws are to be adequately characterised in the field. In order to address this, a semi-analytical modelling methodology has first been developed for the reflection and transmission of guided waves from a single flaw and then, this has been combined with an analytical model for wave propagation to extend it to simulate the reflections from two or more flaws. The semi-analytical model for two flaws has been validated by comparison with experimental data and verified against three-dimensional finite element simulations.
ISSN:0195-9298
1573-4862
DOI:10.1007/s10921-013-0192-x