Natural focusing for the detection of defects beyond elbows

Joseph Lawrence Rose, Michael J. Avioli, Peter J. Mudge

Research output: Contribution to journalConference article

Abstract

Long range ultrasonic guided wave inspection is advancing rapidly and is commonplace today. Benefits of using longitudinal or torsional modes are being established in special circumstances of improved sensitivity, resolution, or penetration power. The possibility of inspection under insulation, coatings, or with water filled pipes or around elbows is possible. Detection of defects beyond a pipe elbow is difficult for axisymmetric wave impingement onto the elbow. For non-axisymmetric input to the elbow region, however, via partial loading around the circumference, allows natural focusing to occur because of angular profile variation around the circumference of the pipe. An experiment is reported here to demonstrate this process.

Original languageEnglish (US)
Pages (from-to)1-5
Number of pages5
JournalAmerican Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
Volume456
DOIs
StatePublished - Nov 24 2003
Event2003 ASME Pressure Vessels and Piping Conference - Cleveland, OH, United States
Duration: Jul 20 2003Jul 24 2003

Fingerprint

Pipe
Defects
Inspection
Guided electromagnetic wave propagation
Ultrasonic waves
Insulation
Coatings
Water
Experiments

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering

Cite this

@article{ae2b6b9ace0c42bb98c051fb7a016f0f,
title = "Natural focusing for the detection of defects beyond elbows",
abstract = "Long range ultrasonic guided wave inspection is advancing rapidly and is commonplace today. Benefits of using longitudinal or torsional modes are being established in special circumstances of improved sensitivity, resolution, or penetration power. The possibility of inspection under insulation, coatings, or with water filled pipes or around elbows is possible. Detection of defects beyond a pipe elbow is difficult for axisymmetric wave impingement onto the elbow. For non-axisymmetric input to the elbow region, however, via partial loading around the circumference, allows natural focusing to occur because of angular profile variation around the circumference of the pipe. An experiment is reported here to demonstrate this process.",
author = "Rose, {Joseph Lawrence} and Avioli, {Michael J.} and Mudge, {Peter J.}",
year = "2003",
month = "11",
day = "24",
doi = "10.1115/PVP2003-1845",
language = "English (US)",
volume = "456",
pages = "1--5",
journal = "American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP",
issn = "0277-027X",
publisher = "American Society of Mechanical Engineers(ASME)",

}

Natural focusing for the detection of defects beyond elbows. / Rose, Joseph Lawrence; Avioli, Michael J.; Mudge, Peter J.

In: American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP, Vol. 456, 24.11.2003, p. 1-5.

Research output: Contribution to journalConference article

TY - JOUR

T1 - Natural focusing for the detection of defects beyond elbows

AU - Rose, Joseph Lawrence

AU - Avioli, Michael J.

AU - Mudge, Peter J.

PY - 2003/11/24

Y1 - 2003/11/24

N2 - Long range ultrasonic guided wave inspection is advancing rapidly and is commonplace today. Benefits of using longitudinal or torsional modes are being established in special circumstances of improved sensitivity, resolution, or penetration power. The possibility of inspection under insulation, coatings, or with water filled pipes or around elbows is possible. Detection of defects beyond a pipe elbow is difficult for axisymmetric wave impingement onto the elbow. For non-axisymmetric input to the elbow region, however, via partial loading around the circumference, allows natural focusing to occur because of angular profile variation around the circumference of the pipe. An experiment is reported here to demonstrate this process.

AB - Long range ultrasonic guided wave inspection is advancing rapidly and is commonplace today. Benefits of using longitudinal or torsional modes are being established in special circumstances of improved sensitivity, resolution, or penetration power. The possibility of inspection under insulation, coatings, or with water filled pipes or around elbows is possible. Detection of defects beyond a pipe elbow is difficult for axisymmetric wave impingement onto the elbow. For non-axisymmetric input to the elbow region, however, via partial loading around the circumference, allows natural focusing to occur because of angular profile variation around the circumference of the pipe. An experiment is reported here to demonstrate this process.

UR - http://www.scopus.com/inward/record.url?scp=0242551354&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0242551354&partnerID=8YFLogxK

U2 - 10.1115/PVP2003-1845

DO - 10.1115/PVP2003-1845

M3 - Conference article

VL - 456

SP - 1

EP - 5

JO - American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP

JF - American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP

SN - 0277-027X

ER -