The use of Fabry Perot fiber optic sensors to monitor residual strains during pultrusion of FRP composites

This paper describes the use of an embedded optical sensor to measure the process induced strain in pultruded carbon fiber reinforced composite rods. The survivability of Fabry Perot optical sensors in the pultrusion process, real time strain monitoring during the pultrusion process and residual strain measurements within the composite rods, were the three objectives of the research. Strain profiles were recorded for individual experiments as...