PSI - Issue 24

De Giorgi Marta et al. / Procedia Structural Integrity 24 (2019) 866–874 Author name / Structural Integrity Procedia 00 (2019) 000 – 000

869

4

Fig. 2. Geometry of the panel with indication of the SMA wire grids and defect localization

Table 1. Detail of defects introduced in the panel Defect

Diameter d [mm] Depth h [mm]

d1 d2 d3 d4 d5 d6 d7 d8 d9

2 2 2 3 3 3 3 4 4 4 4 9 6 6 6 2

1

2.6 1.8

1 2 3

2.5

1 2

d10 d11 d12 d13 d14 d15

2.6

4

2.7

4

5.35

4

fp

clearance hole

3. Experimental results and discussion A Pulsed Thermography technique was used for the experimental evaluation of the defects. The elaboration of the raw data has been carried out using a routine Matlab that allow calculating the absolute contrast and the relative