PSI - Issue 2_A

M. Karanika et al. / Procedia Structural Integrity 2 (2016) 1252–1259 1257 6 M. Karanika, D. Georgiou, S. Darmanis, Α . Papadogoulas, E.D. Pasiou, S.K. Kourkoulis / Structural Integrity Procedia 00 (2016) 000 – 000

Fig. 7. The method developed to elaborate the data of the 3D-DIC system. The lines of the three fractures are marked red and the “virtual gauges” formed to measure the distance between the lips of each fracture are shown for each fracture in the right photo.

(a)

(b)

1200

900

Fracture 1

Fracture 2

800

600

u z [ μ m]

u y [ μ m]

300

400

0

0

0

300

600

900

0

300

600

900

Load [N]

Load [N]

(c)

0

0

300

600

900

-100

-200

u x [ μ m]

-300

Fracture 3

-400

Load [N]

Fig. 8. The variation of thedistance between the fractures’ lips as obtained by the “virtual gauges” introduced in Fig.7. Th e samecolour code is adopted, i.e. blue lines correspond to the blue “virtual gauge” and red ones to the red “virtual gauge”.