Experimental Research of Expanding Fracture of Cylinder Shell by High Speed Optical Photography

With the development of techniques in the ultrafast physics experiment, there is an urgent need to fabricate a diagnostic equipment with a sufficiently high temporal and spatial resolution to study the characteristics of high energy products. As the resolution of the currently used ultra-high speed rotating mirror photography cannot meet the needs of the experiment, the ultra-high speed photo -electric camera has attracted increasingly greater attention due to its much higher resolution achieved. In our experiment the photo-electric and rotating mirror camera was used to investigate expanding fractures of the cylinder shell. The results show that the photo quality obtained by the photo-electric camera is greatly improved because this camera has a greater ability to eliminate motion blur during the experiment, and is capable of taking more photos. Thus we propose to use two cameras jointly so as to gain a better understanding of the physical process under investigation.