Abstract
In the present paper, the failure behavior of the joint between fiber reinforced polymer (FRP) shapes and polytetrafluoroethylene (PTFE) roof membranes has been studied. The tensile test of the joint has been performed statically, then its failure mechanism has been discussed. The fiber Bragg grating sensors have been embedded into FRP materials. It has been successful in that not only strain quantities but also optical power spectra were measured in detail. Consequently it is shown that the optical power decreases as the load increases and its shape develops two peaks after reaching at a critical load due to the occurrences of small transverse cracks.
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