Issue 75

P.V. Trusov et al., Fracture and Structural Integrity, 75 (2026) 463-477; DOI: 10.3221/IGF-ESIS.75.31

Figure 4: Von Mises stress determined by the elastoviscoplastic and the modified elastoplastic Lin model depending on the equivalent strain (results of experiments 5–8, deformation range 24–50%) Of particular interest is the convergence of the elastoviscoplastic model and the elastoplastic one at the mesolevel, the analysis of which is performed using the above estimates in terms of shear norms. Figs. 5 and 6 show the results of calculations of the values of F , G estimates obtained during experiment 8 (Tab. 1).

Figure 5: Norm of the difference in accumulated shears in grains, calculated using the EVP and modified EP models, depending on the equivalent strain (%) for experiment 8

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