Paper Title:
Crack Propagation Monitoring of DCB Composite Specimens Using Distributed Optical Fiber Sensor
  Abstract

In the conventional DCB test, test is usually conducted by observing the crack growth with a microscope, in this paper, new technique is tried to monitor the crack propagation in real time using optical fiber attached in the Kevlar/epoxy specimen. Crack tip position was monitored using strain distribution field data from the optical fiber and compared with the microscope data. BOCDA (Brillouin Optical Correlation Domain Analysis) system was used to measure the strain distribution of the optical fiber and spatial resolution, strain accuracy were about 9mm, ±20με each.

  Info
Periodical
Materials Science Forum (Volumes 654-656)
Main Theme
Edited by
Jian-Feng Nie and Allan Morton
Pages
2592-2595
DOI
10.4028/www.scientific.net/MSF.654-656.2592
Citation
H. J. Yoon, K. Y. Song, J. S. Kim, K. B. Shin, S. C. Kim, "Crack Propagation Monitoring of DCB Composite Specimens Using Distributed Optical Fiber Sensor", Materials Science Forum, Vols. 654-656, pp. 2592-2595, 2010
Online since
June 2010
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$32.00
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