Issue 55

M. M. Konieczny et alii, Frattura ed Integrità Strutturale, 55 (2021) 241-257; DOI: 10.3221/IGF-ESIS.55.18

compared with the results obtained by the finite element method according to the ANSYS program. The results of these comparisons are presented in Fig. 13 – in the case of freely supported plate and in Fig. 14 – in the case of fixed edges, respectively. Fig. 13 shows that the maximum difference in the stress values is equivalent von Mises stress    7.49% a red . On the other hand, Fig. 14 shows that the maximum difference in the stress values is equivalent von Mises stress   12.34% a red . The calculations carried out in the work with the analytical and numerical method using the ANSYS program show that the maximum difference in the results obtained with these methods in the case of equivalent von Mises stress is  a red = 12.34%. (around 13%), i.e.:    σ σ *100% σ a n a red red red a red where:  n red ,  n red –equivalent vo Mises stress determined by analytical and numerical methods, respectively.

Figure 13: Comparison of equivalent von Mises stress  red determined analytically and numerically in the cross-section of the bimetallic perforated plate freely supported and loaded with a concentrated force P = 10 kN determined on the radius r = R 5 = 60 mm.

Figure 14: Comparison of equivalent von Mises stress  red determined analytically and numerically in the cross-section of the bimetallic perforated plate fixed and loaded with a concentrated force P = 10 kN determined on the radius r = R 5 = 60 mm.

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