PSI - Issue 51

Daniel Ivaničić et al. / Procedia Structural Integrity 51 (2023) 199 – 205 D. Ivani č i ć et al. / Structural Integrity Procedia 00 (2019) 000–000

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Prior to experimental measurements, sensors were set, ARAMIS system was calibrated, samples were prepared by applying a stochastic pattern of paint and the quality of the raster was checked. Each sample was then clamped to a holding and loading device and loaded with 5 kg weight, as shown in Fig. 8. Two separate measurements were performed for each sample in order to obtain more reliable results.

Fig. 8. Experimental measurements using ARAMIS system.

3. Results and discussion Results used for comparison and verification were values of displacement along the y axis. Fig. 9 shows first experimental measurement of displacement along y axis on ABS sample and corresponding results obtained using FE analysis.

a)

b)

Fig. 9. Results of (a) experimental measurement and (b) FEA results of ABS sample.

For easier comparison of the results, the values of y axis displacement measured using ARAMIS system and FE analysis results, along with the relative deviation of the average experimentally obtained value from the value obtained by FE analysis are given in Table 2 for ABS and Table 3 for two PET-G samples. Table 2 shows good agreement of the results obtained experimentally and using FE analysis with maximum deviation for ABS cantilever sample being 6,193 %. Table 3 shows good agreement of the results obtained experimentally and using FE analysis with maximal deviation for the 1st PET-G cantilever plate sample being 4,416 %, while maximal deviation for the 2nd PET-G cantilever plate sample is somewhat higher, 11,797 %. Larger