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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Fig. 1. (a) Real cylindrical HSS specimen for fatigue tests; (b) dimensions of the real specimen; (c) scheme of the numerical model of the middle part of the corroded specimen with three corrosion pits subjected to remote tensile cyclic loading. 3. Results and discussion As described above, the mutual interaction of corrosion pits and their influence on the stress distribution/concentration was investigated for various geometries. Particularly,  xx ,  yy and  vonMises values in MPa along path 1 (specimen centre; distance presented in mm) for a chosen configuration with D and CC equal to 0.1 mm are presented in Fig. 2 and the results verify the numerical model observing the opening stress equal to the applied one (100 MPa) and  xx close to zero.

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