Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

Fracture localization in space as a cause of variations in the amplitude distribution of acoustic emission signals

Fracture localization in space as a cause of variations in the amplitude distribution of acoustic... Abstract The change in the spatial distribution of acoustic emission sources in the course of the deformation and fracture of samples of materials and rocks is accompanied by changes in the amplitude distribution of the received signals because of the geometric spread of the elastic wave front. It is customary to characterize the amplitude distributions of acoustic emission signals in terms of the b value (the slope of the differential amplitude distribution). In particular, the localization of the sources may cause a decrease in the b value, which is usually interpreted as a precursor of macrofracture. A correct interpretation of the decrease in the b value is only possible if the location of the sources in space is accomplished and a correction for the spread and attenuation of elastic waves is introduced. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Acoustical Physics Springer Journals

Fracture localization in space as a cause of variations in the amplitude distribution of acoustic emission signals

Acoustical Physics , Volume 51 (3): 7 – Jun 1, 2005

Loading next page...
 
/lp/springer-journals/fracture-localization-in-space-as-a-cause-of-variations-in-the-kE91uQ2Vuq

References (19)

Publisher
Springer Journals
Copyright
2005 Pleiades Publishing, Inc.
ISSN
1063-7710
eISSN
1562-6865
DOI
10.1134/1.1922546
Publisher site
See Article on Publisher Site

Abstract

Abstract The change in the spatial distribution of acoustic emission sources in the course of the deformation and fracture of samples of materials and rocks is accompanied by changes in the amplitude distribution of the received signals because of the geometric spread of the elastic wave front. It is customary to characterize the amplitude distributions of acoustic emission signals in terms of the b value (the slope of the differential amplitude distribution). In particular, the localization of the sources may cause a decrease in the b value, which is usually interpreted as a precursor of macrofracture. A correct interpretation of the decrease in the b value is only possible if the location of the sources in space is accomplished and a correction for the spread and attenuation of elastic waves is introduced.

Journal

Acoustical PhysicsSpringer Journals

Published: Jun 1, 2005

Keywords: Acoustics

There are no references for this article.