Issue 69

S. Eleonsky et alii, Frattura ed Integrità Strutturale, 69 (2024) 192-209; DOI: 10.3221/IGF-ESIS.69.14

In this study, two symmetrically applied indenters made of 16 mm hardened steel balls were used to create plastically induced dimples. The 70 kN external force generated a 6.0 mm plastic dimples while the drilling of a 6.2 mm hole entirely removed the curved dimples surfaces.

Figure 1: (a) The appearance of the T-shaped stringer part. (b) The experimental grid of probe holes in M area with the indication of coordinate system.

Figure 2 : (a) (a) The sketch of the second specimen with indication of its size, dimples and probe holes locations, and coordinate system. (b-d) The StressWaveTM process of compressive residual stresses formation.

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