Issue 73

V. Pisarev et alii, Fracture and Structural Integrity, 73 (2025) 108-130; DOI: 10.3221/IGF-ESIS.73.08

(a) Real image (b) Scheme Figure 4: Mutual location of contact dimple border and probe hole edges in CP_D-25 coupon.

I NITIAL EXPERIMENTAL INFORMATION

Statically induced dimple nitial experimental information has a form of interference fringe patterns (so-called interferograms or interference images), a source of which is the release of intrinsic energy from residual stresses due to through hole drilling. Obtained interference images reflect distributions of in-plane displacement component u (along horizontal direction) and v (along I

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