PSI - Issue 58

Lucie Malíková et al. / Procedia Structural Integrity 58 (2024) 68–72 Lucie Malíková et al. / Structural Integrity Procedia 00 (2019) 000–000

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Similarly, the values of the stresses  xx ,  yy and  vonMises along path 2 starting at the specimen centre according to Fig. 1c obtained from ANSYS for a chosen configuration with D and CC equal to 0.1 mm are presented in Fig. 3. The contoured plot under the graph represents von Mises stress distribution.

Fig. 3.  xx (cyan),  yy (purple) and  vonMises (red) values in MPa along path 2 according to Fig. 1c (corrosion pits surface; distance presented in mm) for a corroded configuration with D and CC equal to 0.1 mm.

For all configurations investigated, the maximum of the von Mises stress was found in the bottom point of the corrosion pit located farther from the symmetry axis (the upper and bottom pit in Fig. 1c). Then, the effect of various geometries on this value could be studied. The results obtained can be seen in Fig. 4.

Fig. 4. Dependence of the maximum of the von Mises stress (found at the bottom point of the corrosion pits farther from the specimen symmetry axis) on the corrosion pit depth D for various mutual distance of the corrosion pits CC , see Fig. 1c for the geometry.