Relationship between AE Energy and Fracture Energy of Plain Concrete Beams: Experimental Study
Publication: Journal of Materials in Civil Engineering
Volume 20, Issue 3
Abstract
In this experimental study an acoustic emission (AE) technique was used on geometrically similar notched plain concrete three-point bend specimens of different sizes. This study aims to measure the acoustic emission energy released during fracture process of plain concrete beams and to investigate the relation between acoustic emission energy to fracture energy of plain concrete beams of different sizes. The technique of acoustic emission uses one or more sensors to listen to a wide range of events that may take place inside a solid material. A series of concrete specimens of different sizes was tested for fracture energy. Acoustic emission energy release was monitored while testing concrete specimens for fracture energy. A correlation between fracture energy and acoustic emission energy was observed. Fracture energy was calculated from work of fracture. Size effect on the strength of concrete beams was observed. An equation has been proposed to obtain fracture energy by knowing acoustic emission energy.
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Acknowledgments
The writers acknowledge the assistance received from Mr. Narayanappa.
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Information & Authors
Information
Published In
Journal of Materials in Civil Engineering
Volume 20 • Issue 3 • March 2008
Pages: 212 - 220
Copyright
© 2008 ASCE.
History
Received: Jul 17, 2006
Accepted: Jul 13, 2007
Published online: Mar 1, 2008
Published in print: Mar 2008
Notes
Note. Associate Editor: John S. Popovics
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