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Proceedings Paper

Use of microbend fiber optic sensor in material characterization
Author(s): Chonghua Zhou; Arun Shukla; Stephen V. Letcher; Ram-Nandan P. Singh; Frank Sienkiewicz
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Paper Abstract

A new microbend fiber-optic sensor has been developed and applied to static, and, dynamic fracture problems and impact detection. The static and dynamic calibration of this sensor is described. The sensor was made using a multimode fiber and the response of the sensor was studied and optimized. It has a strain sensitivity (gage factor) of over 28 with wide dynamic range and high frequency response. A single edge notched specimen was used with this sensor to determine both the static and dynamic stress intensity factors. The experimental results match well with the theoretical predictions and with the results obtained using electrical strain gages.

Paper Details

Date Published: 7 February 1994
PDF: 10 pages
Proc. SPIE 2072, Fiber Optic Physical Sensors in Manufacturing and Transportation, (7 February 1994); doi: 10.1117/12.166856
Show Author Affiliations
Chonghua Zhou, Univ. of Rhode Island (United States)
Arun Shukla, Univ. of Rhode Island (United States)
Stephen V. Letcher, Univ. of Rhode Island (United States)
Ram-Nandan P. Singh, Univ. of Rhode Island (United States)
Frank Sienkiewicz, Univ. of Rhode Island (United States)

Published in SPIE Proceedings Vol. 2072:
Fiber Optic Physical Sensors in Manufacturing and Transportation
John W. Berthold; Richard O. Claus; Michael A. Marcus; Robert S. Rogowski, Editor(s)

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