摘要
本文使用动态离焦散斑技术,测试板的动态弯曲获得成功。并推导了Kirchhoff板动态变形的有关分析,提出了由最大斜率确定材料常数的思想。显然,这是同离焦散斑方法所测数据直接相关的处理手法。
Transient defocus speckle photography, with a double pulsed ruby laser as the light source, is utilized to record the dynamic deformation of plates made of aluminum. A simplified formal solution is derived from the Kirchhoff plate equation with a point impact of finite duration. A method for determining material parameters from the experimental data is hence developed.
关键词
离焦散斑
摄影
材料
测量
形变
Defocus speckle photography
Pulsed laser
Dynamic deformation
