【作者】 韩雷； 伍小平； 胡时胜；

【Author】 Han Lei,Wu Xiaoping,Hu Shisheng (University of science and Technology china,He(?)ei,230026,China)

【机构】 中国科学技术大学；

【摘要】 本文提出了全息干涉相离焦散斑干涉的动态测试方案,并在对实际工程材料金属薄板的撞击实验中付诸实施,获得了成功。以新型的DJ-Ⅰ型双脉冲红宝石激光器作为瞬态实验的相干光源。因仪器的被动Q开关特性,用自制的数字电路完成调Q监视、同步控制和测时。加载及动载测定装置由Hopkinson设备改制,自编的软件可在实验后数分钟内得到撞击波形。更多还原

【Abstract】 The major objective of this study is to investigate the dynamic experimental technique about the deformation of the finite-circular metal plates after normal impact.Holographic interferometry and defoons speckle photography are utilized to record the transtent response of plates.Synchronization of the event with the pulses from the new type DJ-I ruby laser is accomplished with the electronical equipment designed by the authors.Hopkinson type icstrumented bar loading apparatus is used to determine the loading waveforms.更多还原