撞击载荷下数字电子散斑离面位移的测试研究1）  

A STUDY OF MEASURING OUT OFF PLANE DISPLACEMENT USING DSPI UNDER IMPACT LOADING

作　　者：佟景伟[1] 张东升[1] 李鸿琦[1] 

机构地区：[1]天津大学力学系

出　　处：《力学学报》1996年第4期493-497,共5页Chinese Journal of Theoretical and Applied Mechanics

基　　金：国家教委博士点科研基金

摘　　要：采用瞬态光学图像采集技术，实现了动态数字散斑干涉（ＤＳＰＩ）．以周边固支圆板受法向撞击集中载荷为例，对其离面位移场进行了测试．实验值与动有限元计算结果比较。The dynamic digital speckle pattern interferometry(DSPI) has been achieved by using the instantaneous image capturing technique. The measurement of out of plane displacement field of circular restrained plate with a cross point impact loading is completed. The results of dynamic finite element method show good agreement with those of experiments.

关 键 词：图像采集技术 动态数字 散斑干涉 离面位移场 

分 类 号：O348.1[理学—固体力学]