The Use of High Strain Rate Testing to the Study of Turbine Missile Impact

J. Buchar, M. Lazar, S. Rolc, J. Hrebícek
1997 Journal de Physique IV : Proceedings  
A study of the interaction of turbine blades with the steel plate has been conducted. Experiments simulating this event have been numerically simulated using DYNA 3D code. This mathematical modelling needs reliable constitutive relations describing the material behaviour. These constitutive equations have been suggested on the results of material testing by the Hopkinson Split Bar Technique. Their validity has been further tested using of the Taylor impact test. It has been found that the
more » ... ound that the computed values of the projectile residual velocities well agree with the experimental data for different impact velocities and for the turbine fragments of.different shapes. Resurnt : On ktudie Itinteraction d'une auhe de rurhine avec une plaque d'acier. Les expfnences effectuees ont etC simul6es par le code DYNA 3D. Cette simulation exige dzs relations constitutives frahles decrivan~ le comportement des matfriaux. Ces equations consti~utives on[ it2 ohtcnues par la technique de la barre d'Hupkinson. La validit6 des rCsuIrats a CLC ensuite vkrifi6e par le test de Taylor. La valeur de la vitesse rislduelle calculic du projectile esL en bun accord avec les donn6es obtenues par I'expCrience dans tout le dornalnc des vitesses d'inc'idence et pour des fragments d'auhe de turbine de differentes iurmes.
doi:10.1051/jp4:1997332 fatcat:2m32kg3l5fbmdhqdterdckince