Long range ultrasonic guided wave focusing in pipe for large defect circumferential length analysis

Jing Mu, Li Zhang, Joseph L. Rose, Jack Spanner

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Planar saw cuts and volumetric elliptical corrosion with different circumferential lengths are studied using ultrasonic guided wave focusing techniques in steel pipe. A circumferential scan is achieved by focusing at 44 circumferential positions around the pipe at a specific distance. The maximum amplitude of the defect echo is recorded with respect to each circumferential focal position in producing an experimental angular profile of the reflected wave. The maximum amplitude of the angular profiles occurs at the angle of the defect circumferential location. The energy reflected from the defects with different cross sectional areas (CSA) for each focusing position can be calculated from the focused angular profile. Comparison between the experimental angular profiles and the theoretical ones provides us with a good estimate of the defect circumferential length.

Original languageEnglish (US)
Title of host publicationReview of Progress in Quantitative Nondestructive Evaluation
Subtitle of host publicationVolume 26
Pages131-135
Number of pages5
DOIs
StatePublished - May 14 2007
EventREVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION - Portland, OR, United States
Duration: Jul 30 2006Aug 4 2006

Publication series

NameAIP Conference Proceedings
Volume894
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherREVIEW OF PROGRESS IN QUANTITATIVE NONDESTRUCTIVE EVALUATION
CountryUnited States
CityPortland, OR
Period7/30/068/4/06

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Long range ultrasonic guided wave focusing in pipe for large defect circumferential length analysis'. Together they form a unique fingerprint.

Cite this