PSI - Issue 42

Valerii Matveenko et al. / Procedia Structural Integrity 42 (2022) 307–314 V.Matveenko, N.Kosheleva, G.Serovaev / Structural Integrity Procedia 00 (2022) 000 – 000

311 5

Fig. 2. A sample diagram with embedded temperature and strain fiber-optic sensors for (a) point and (b) distributed measurements

Fig. 3. A manufactured sample with embedded fiber-optic sensors

Registration of FOSs data was carried out during the process of samples manufacturing, from the moment of embedding the FOSs. Figure 4 shows strain-time graphs with temperature compensation taking into account, measured by Bragg grating sensors, where 1 – s1, 2 – s2. Figure 4a shows the entire printing process, as well as the time interval after the end of printing. Figure 4b shows only the printing time period.

Fig. 4. Change of measured strain during the printing process of the sample, measured by sensors s1 and s2