PSI - Issue 47

Mikhail Sokovikov et al. / Procedia Structural Integrity 47 (2023) 693–697 Author name / Structural Integrity Procedia 00 (2019) 000–000

697

5

4. Numerical calculation The numerical simulation of the experiment was done with consideration of the peculiarities of the microdefect accumulation kinetics, Bilalov D.A .at al. (2018). The obtained results are shown in Fig.3. The comparison of the temperature fields obtained experimentally with the results of simulations carried out taking into account the kinetics of accumulation of mesodefects gives satisfactory agreement to an accuracy of ~20%. Conclusion The values of the temperature fields obtained during the high-speed deformation of the AMg6 alloy specimens using infrared thermography, the structural studies carried out with an electron microscope and the results of numerical simulation conducted with consideration of the kinetics of microdefect accumulation in the material, Bilalov D. A. at al. (2018), Sokovikov M.A. at al. (2020), allow us to hypothesize that, for the AMg6 alloy tested under specified loading conditions, one of the mechanisms of plastic strain localization at high-speed loading is associated with the jumpwise processes in the defect structure of the material.

Acknowledgements This research

was

supported

by

the

Russian

Science

Foundation

(project

21-79

30041), https://rscf.ru/en/project/21-79-30041/

References

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