Analysis of fragmentation of plates of synthetic mineral alloys under impact of ball high velocity by visualization technique

The object of research are synthetic mineral alloys. Their structure comprises a 95 % crystalline and 5 % amorphous phase components, these materials have strong dissipative properties and strong perspectives for use as body armor components. To realize the potential of the dissipative properties of these materials must be a detailed study of the deformation behavior at high shock loads. The goal of work is to study the destruction and fragmentation of synthetic mineral alloys at high velocity impact by imaging technique. For experiments was used pneumatic gun length 3950 mm and a steel ball diameter of 23.8 mm, the speed of the ball was 233-234 m/s. For visualization was used a complex of video recording, consisting of a high-speed camera Photron Fastcam SA5 and lighting equipment. Shooting speed was 50,000 frames / sec. Experiments was made with differing material samples: synthetic mineral based alloys gabbro and basalt. In results was found stages of damage and fragmentation as per-frame images, quantitative analysis of the data registration process speed collision and kinetics of cracks (thickness, disclosure) during the fragmentation. These data allowed to establish qualitative characteristics of fragmentation of synthetic mineral alloys of the type quasi-brittle materials. This information is of interest to develop improved varieties of synthetic mineral alloys and protective structures of them. Vizualization techniques can be used to practice the following materials science research and experimental study of the laws of ballistic damage and destruction of critical structural elements of synthetic mineral alloys.