PSI - Issue 64

Andrea Armonico et al. / Procedia Structural Integrity 64 (2024) 604–611 Author name / Structural Integrity Procedia 00 (2019) 000 – 000

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2012). Figure 7 compare the acquisition obtained with the DIC and the strain profile measured by the optical fibre in the same zone. For both beams, the correspondence between deformation peaks and crack position is satisfactory and justifies the use of this instrument in the field of structural monitoring. In addition, the almost corresponding measured value between the steel and the fibre highlighted that it is possible to confirm the conservation of adhesion between the optical fibre and the element.

Figure 6 Strain profile comparison in T-shaped monotonically-tested beams at 20kN load

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2F = 15 kN 2F = 20 kN

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Figure 7 Crack location identification in the reference beam the strengthened beam