The dynamic stress concentration problems at the swallowtail on a hammer forging die are investigated by using the dynamic photoelastie method. 用动态光弹性法研究了锤锻模燕尾的动态应力集中问题。
Based on the conventional digital photoelastic method, this dissertation developed a digital dynamic photoelastic system to record the dynamic photoelastic fringe patterns. 本文是以数位光弹法为基础，架设一套数位动态光弹系统来拍摄动态光弹条纹。
