Structural monitoring of filamentary composites using embedded fiber opticsThe feasibility of monitoring overall integrity of structural components made of filamentary composites, by embedding optical fibers between lamina of a composite beam, is investigated using a beam constructed of Kevlar/epoxy cloth with embedded optical fibers aligned with the longitudinal axis of the beam. Phase changes were monitored in three different optical fibers as the composite beam was subjected to pure bending, and the strain response of the fibers was compared to the strain gage readings taken at the surface, showing a strong correlation between the phase change and the applied deformation.
Document ID
19910025393
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Cashon, John L. (Alabama Univ. Huntsville, AL, United States)
Lehner, David L. (Alabama Univ. Huntsville, AL, United States)
Bower, Mark V. (Alabama Univ. Huntsville, AL, United States)
Gilbert, John A. (Alabama, University Huntsville, United States)