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Geological Engineering: Proceedings of the 1st International Conference (ICGE 2007)

Editor
Baosong Ma
Baosong Ma
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ISBN:
9780791802922
No. of Pages:
1760
Publisher:
ASME Press
Publication date:
2009

Acoustic emission is an important physical phenomenon when materials are deformed and fractured due to inner distortion or outer loading. It is also a direct parameter to show the mechanical property of rocks. Detecting or monitoring acoustic emission is significant in rock material failure theory and engineering. Because electromagnetism ultrasonic detection implements have some disadvantages of poor interference immunity, low sensitivity and inferior reliability, acoustic emission detection based on fiber Bragg grating (FBG) sensor is put forward to monitoring rocks. The strain and ultrasonic detection principles of FBG sensors are analyzed, at the same time, experimental system based on FBG...

Abstracts
Introduction
Numerical Simulation of Rock Specimen Failure Sound Emission
Optic Fiber Bragg Grating Sensor Detection and Simulation of Rock Specimen Failure Acoustic Emission
Optic Fiber Bragg Grating Sensor Experiment and Analyses of Rock Specimen Failure Sound Emission
Conclusion
Acknowledgment
References
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