Validation of Ti-6Al-4V Alloy Mechanical Behavior Models for Conditions of Impact Damage of Turbine Engine Fan Blade

Abstract:

The article describes a series of experiments and calculations for verification high-speed deformation behavior and fracture models for the titanium alloy Ti-6Al-4V. Samples made of the micro-and nanocrystalline structure alloy Ti-6Al-4V were ballistically damaged in conditions that meet a ballistic damage of real turbine engine fan blades. It is found that the behavior of the microcrystalline alloy is more accurately described by the Johnson-Cook model. In the case of nanocrystalline material the best fit is achieved by using the Cooper-Symonds model. The achieved models parameters are presented.

• Periodical: Advanced Materials Research (Volume 746)
• Pages: 422-427
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.746.422
• Online since: August 2013
• Authors: M.Sh. Nikhamkin, Leonid Voronov, Irina Semenova, Olga Lubchik
• Keywords: Compressor Blade, Finite Element Method (FEM), Foreign Object Damage (FOD), Mechanical Behavior Models, Titanium Alloy

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