Ultra High speed imaging of dynamic fracture in transparent Spinel ceramic

Ultra High speed imaging of dynamic fracture in transparent Spinel ceramic. The videos where film at frame rate of 2,5,7.5 and 8 milion frame per second. The Spinel bar, 3mm thick, is standing upright and unsupported. It is shock-loaded by a steel bar (Hopkinson) on the right hand side. The crack is initiated at the opposite left side, which is in tension.

透明尖晶石陶瓷（Spinel ceramic）动态断裂过程的超高速成像数据集。本次采集的视频帧率分别为200万、500万、750万及800万帧每秒。实验所用的尖晶石陶瓷棒厚度为3mm，呈直立无支撑状态。试样右侧通过钢杆（霍普金森杆，Hopkinson）施加冲击载荷。裂纹萌生于与之相对的左侧受拉区域。