THE USE OF HIGH-STRAIN RATE TESTING TO THE STUDY OF TURBINE MISSILE IMPACT

A study of the interaction of turbine blades with the steel plate has been conducted. Experiments simulating this went have been numerically simulated using DYNA 3D code. This mathematical modelling needs relia ble constitutive relations describing the material behaviour. These co nstitutive equations have been suggested on the results of material te sting by the Hopkinson Split Bar Technique. Their validity has been fu rther tested using of the Taylor impact test. It has been found that t he computed values of the projectile residual velocities well agree wi th the experimental data for different impact velocities and for the t urbine fragments of different shapes.