کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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746120 | 894443 | 2009 | 6 صفحه PDF | دانلود رایگان |

Extrinsic Fabry-Perot interferometric (EFPI) strain sensors (SSs) were assessed for their sensing capacity and survivability via surface mounting and interior embedment in the carbon/epoxy beams. Artificial delaminations of two different sizes were used to simulate delamination. The embedded EFPI-SSs along with surface-mounted SGs were used to evaluate the effect of the delaminations on bending stiffness induced by quasi-static loading on a comparative basis. The linear responses of EFPI-SSs up to a bending strain of 0.5% were in good agreement with the interpolated strains of surface strain measurements. The embedded EFPI-SSs were able to differentiate the effect of the tensile delaminations on bending stiffness. The interior strain data from embedded EFPI-SSs were shown to be very useful to extrapolate the strain difference on both sides of the delaminations as well as deducing local stresses.
Journal: Optics and Lasers in Engineering - Volume 47, Issue 10, October 2009, Pages 1063–1068