Determination of Parameters of the Johnson–Cook Model for the Description of Deformation and Fracture of Titanium Alloys
A. E. Buzyurkin1, I. L. Gladky2, E. I. Kraus1
1Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia
2Open Joint-Stock Company ”Aviadvigatel”, Perm', 614990 Russia
Keywords: deformation, fracture, strain rate, Johnson–Cook model
Abstract
Stress-strain curves of dynamic loading of VT6, OT4, and OT4-0 titanium-based alloys are constructed on the basis of experimental data, and the Johnson-Cook model parameters are determined. Results of LS-DYNA simulations of the processes of deformation and fracture of the fan casing after its high-velocity impact with a fan blade simulator are presented.
DOI: http://dx.doi.org/10.1134/S0021894415020194
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