PSI - Issue 54

Ivana Zetková et al. / Procedia Structural Integrity 54 (2024) 256–263 Author name / Structural Integrity Procedia 00 (2019) 000 – 000

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0 Max. principal stress [MPa] 0,1

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Smax [N/mm2] - kvádr 2 Z standard Smax [N/mm2] - kvádr 4 Z standard Smax [N/mm2] - kvádr 1Z 2 MS1-T Smax [N/mm2] - kvádr 3Z 2 MS1-T

Smax [N/mm2] - kvádr 3 Z standard Smax [N/mm2] kvádr 1 Z b standard Smax [N/mm2] - kvádr 2Z opak 2 MS1-T Smax [N/mm2] - kvádr 4Z 2 MS1-T

Fig. 3. (a) first picture; (b) second picture.

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Reliable values for drilling method

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Max. principal stress [MPa]

Cyclic 7, cut

Cyclic 8, cut

Cyclic 8, platform

Cyclic 9, platform

Fig. 4. (a) first picture; (b) second picture.

The results of all previous tests are profiles of residual stresses monitored on samples on the building platform. In the production of real components, the parts are usually removed from the platform. This process was simulated on specimens for cyclic loading and subsequently the residual stresses before and after cutting from the construction platform were analyzed. The results, see Figure 4, confirm that after removal, there is a slight increase in the values of residual stresses. However, the values found are within 60 MPa in the area that is considered to be reliable for the