Acoustic emission for monitoring a reinforced concrete beam subject to four-point-bending

Acoustic emission (AE) analysis is applied to monitor the deterioration progress of a reinforced concrete beam under loading in a laboratory test. Accuracy of AE locations is discussed. Picking of signal onsets was done using an automatic routine that showed reliable results compared to manually set...

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Bibliographic Details
Published inConstruction & building materials Vol. 21; no. 3; pp. 483 - 490
Main Authors Schechinger, Barbara, Vogel, Thomas
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 01.03.2007
Elsevier B.V
Subjects
Acoustic emission
Adhesives
Algorithms
Case studies
Damage localisation
Elastic wave propagation
Localisation accuracy
Picking
Sensors
Source localisation
Submarine boats
Localisation accuracy
Acoustic emission
Elastic wave propagation
Damage localisation
Source localisation
Picking
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Summary:Acoustic emission (AE) analysis is applied to monitor the deterioration progress of a reinforced concrete beam under loading in a laboratory test. Accuracy of AE locations is discussed. Picking of signal onsets was done using an automatic routine that showed reliable results compared to manually set picks. Elastic wave propagation was numerically modeled to quantify perturbations by a grouted or ungrouted tendon. In the experiments, temporal and spatial occurrence of AE correlates with macroscopically observed deterioration progress. The location capability decreases when cracking of the concrete occurs. Location results then may not represent all ongoing deterioration processes.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0950-0618
1879-0526
DOI:10.1016/j.conbuildmat.2006.04.003