反冲塞效应的热弹性理论分析（Ⅰ）──温度场分析  

The Analytical Study on the Laser Induced Reverse-Plugging Effect by Using the Classical Elastic Plate Theory(Ⅰ)-Temperature Fields

作　　者：周益春[1] 段祝平[1] 王春奎[1] 

机构地区：[1]中国科学院力学研究所非线性连续介质力学开放研究实验室

出　　处：《应用数学和力学》1995年第10期851-860,共10页Applied Mathematics and Mechanics

基　　金：国家863高技术激光领域的资助

摘　　要：本文对我们新近发现的长脉冲激光束对金属薄片材料的一种新的破坏方式──“反冲塞”效应进行了温度场分析，用Ｈａｎｋｅｌ变换和Ｌａｐｌａｃｅ变换，得到了温度场的精确解，以激光束的空间分布为均匀分布和高斯分布为例对温度场进行了计算，结果表明激光束的空间均匀分布是产生反冲塞效应的主要原因。The temperature distributions in the metallic foils induced by spatially cylin-drical long-pulsed laser is examined in order to analyse the newly-discovered reverse-plugging effect (RPE).An exact solution for the temperature fields is derived dy using the Hankel transform and Laplace transform, Numerical resutls are obtained for both spatial distributions with Gaussian and Cylindrical types. The results show that the spatially cylindrical distribution of laser offers a ormidable potential for the RPE.

关 键 词：激光束 反冲塞效应 温度场 热弹性理论 

分 类 号：O343.6[理学—固体力学]