Estimating the accuracy of the indications of fiber-optic sensors based on Bragg gratings when testing the outlet guide vane from carbon fiber

Fiber-optic sensors allow creating components with the possibility of self-diagnosis and forecasting the residual lifetime of work. This issue is particularly relevant when using polymer composite materials in highly loaded aircraft engine elements. The article compares the results of testing the outlet guide vane (OGV) made of carbon fiber, obtained from the indications of fiber-optic sensors (FOS) on the basis of Bragg gratings installed on the surface with the results of mathematical modeling in the software package ANSYS by the finite element method. The tests were carried out on a universal servo-hydraulic machine. The data from fiber-optic sensors was carried out using an interrogator ASTRO X327.