PSI - Issue 52

Hongmin Zhu et al. / Procedia Structural Integrity 52 (2024) 679–689 Zhu et al./ Structural Integrity Procedia 00 (2019) 000 – 000

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Fig. 3. Localisation error, , of the baseline-free techniques for the overall 10 simulated single damage scenarios.

Fig. 4. Imaging results of single impact damage on the 12 -sensors coupon utilising VTR, reciprocity-based and the IB techniques. The imaging results are obtained under 20℃ , 30℃ and 40℃ . Results of the investigations under temperature variations are further shown in Fig. 5. It is shown that the VTR technique mostly yields the highest localisation accuracy among the three techniques. It is further implied in Fig. 5