Paper Title:
Modified Acoustic Emission Source Localization Method to Determine Crack Locations for Masonry Arch Bridge
  Abstract

In this paper, the applicability of the source localisation method in Acoustic Emission (AE) technique to determine the crack locations in masonry is investigated. A series of pencil-break tests are performed on a two-span masonry arch bridge. Because of the layered structures, the assumption of homogeneous material and uniform velocity field in the classical method for concrete is not suitable in the masonry structures. The velocity is not uniform but shows a downdraught with the increasing distance due to the layered material structure. Based on this property, a modified AE source localization method is proposed. The modified factor in the model greatly reduces the effect of the inhomogeneity. The testing results from the pencil breaks and the central pier settlement tests highlight the effective of the modified method.

  Info
Periodical
Chapter
Chapter 8: Frontiers of Construction Information
Edited by
Dongye Sun, Wen-Pei Sung and Ran Chen
Pages
4823-4826
DOI
10.4028/www.scientific.net/AMM.71-78.4823
Citation
J. Xu, G. Lacidogna, "Modified Acoustic Emission Source Localization Method to Determine Crack Locations for Masonry Arch Bridge", Applied Mechanics and Materials, Vols. 71-78, pp. 4823-4826, 2011
Online since
July 2011
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Price
$35.00
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