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
a:2:{s:4:"TEXT";s:224:"1Khristianovich Institute of Theoretical and Applied Mechanics, Siberian Branch, Russian Academy of Sciences, 630090 Novosibirsk, Russia
2Open Joint-Stock Company ”Aviadvigatel”, Perm', 614990 Russia";s:4:"TYPE";s:4:"html";}
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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