@inproceedings{8b1a45937d2042fb8f475e7bc724378b,
title = "Phased-array focusing with longitudinal guided waves in a viscoelastic coated hollow cylinder",
abstract = "Guided wave phased-array focusing techniques have been studied and applied in the long-range guided wave inspection of industrial pipelines. Advantages include longer inspection distance, greater wave penetration power and higher detection sensitivity. For reasons of protection, safety and thermal efficiency, a large percentage of pipes are coated and/or encased and buried underground. A phased-array focusing study for guided waves is now considered on pipelines with viscoelastic coatings. In this paper, longitudinal guided wave focusing as well as axisymmetric wave propagation is studied in a bare pipe and a pipe with a viscoelastic coating. A finite element model is studied. First, an investigation on whether the coating has an affect on the axisymmetric guided wave propagation is reported. Based on the result of a single channel, phased array focusing with 8-channel segments is studied. This study provides a very useful tool and guidance for the analysis and examination of guided wave focusing in a real field pipeline under various coating and environmental conditions.",
author = "W. Luo and Rose, {J. L.} and {Van Velsor}, {J. K.} and J. Mu",
year = "2006",
month = mar,
day = "6",
doi = "10.1063/1.2184617",
language = "English (US)",
isbn = "0735403120",
series = "AIP Conference Proceedings",
pages = "869--876",
booktitle = "Review of Progress in Quantitative Nondestructive Evaluation",
note = "Review of Progress in Quantitative Nondestructive ; Conference date: 31-07-2005 Through 05-08-2005",
}