Optics and Photonics Journal

Volume 7, Issue 8 (August 2017)

ISSN Print: 2160-8881   ISSN Online: 2160-889X

Google-based Impact Factor: 0.72  Citations  h5-index & Ranking

Fiber Bragg Grating Strain Sensing Detecting Multi-Crack Damages under Vibrating Status

HTML  XML Download Download as PDF (Size: 357KB)  PP. 7-13  
DOI: 10.4236/opj.2017.78B002    704 Downloads   1,095 Views  
Author(s)

ABSTRACT

The multi-crack damages modal of simple supported beam has been build, at the vibrating status, the multi-damage detecting method of simple supported beam measured by fiber Bragg grating strain sensing array has been studied. From 0 hz to 200 hz, using exciter vibrating simple supported beam, with different damages, resonant frequency of simple supported beam has changed. So, when the damage appears in simple supported beam, the local rigidity will decrease, the resonant frequency of simple supported beam will be affected, the damage status of simple supported beam have been determined by this. The experimental result indicates that the resonant frequency of simple supported beam has changed when there is no damage, one damage, two damages, three damages on simple supported beam. According to this, the fiber Bragg grating strain sensing array can detect multi-crack damage of simple supported beam under vibrating status.

Share and Cite:

Luo, P. (2017) Fiber Bragg Grating Strain Sensing Detecting Multi-Crack Damages under Vibrating Status. Optics and Photonics Journal, 7, 7-13. doi: 10.4236/opj.2017.78B002.

Cited by

No relevant information.

Copyright © 2021 by authors and Scientific Research Publishing Inc.

Creative Commons License

This work and the related PDF file are licensed under a Creative Commons Attribution 4.0 International License.