Analysis of Pulse Load of a Steel Roller in the Numerical Simulation Method

This article presents the tests of EN C45 steel as a result of the impulse load of the detonation wave of the explosive charge. This process was carried out on a specially prepared test stand using a 75 g Tri-Nitro-Toluene (TNT) drilling cartridge. Two series of tests were carried out with the explosive charge placed in direct contact with the sample and the charge away from the sample at a distance of 30 mm. As a result of detonation, the samples were fragmented or visibly deformed. The main purpose of the work was to verify the impact resistance of EN C45 steel, which is commonly used in technical facilities. The results of research on the impact of the shock wave on the morphology and internal structure of the tested material in the areas subjected to dynamic deformation are presented. The results of computed tomography and light microscopy analyzes as well as numerical analyzes are presented to describe in detail the phenomenon of destruction under the influence of the pressure impulse.