激光无损检测钣金胶接结构缺陷大小的判定  

LASER NON-DESTRUCTIVE DETECTIONOF DEFECT SLZE ON THE CEMENTATION STRUCTURE OF METAL PLATES

作　　者：李恩普[1] 陆福一[1] 陈长乐[1] 张朝晖[1] 

机构地区：[1]西北工业大学应用物理系

出　　处：《光子学报》1994年第5期457-462,共6页Acta Photonica Sinica

摘　　要：本文以周边固定、均匀加载的圆形薄板为钣金胶接结构脱胶的缺陷模型，在不同的实验条件下分别计算了全息与剪切散斑干涉术的条纹分布，从而建立了判定缺陷大小的经验公式。理论与实践符合较好。In this paper a circular plate that is fixed round the circumference and evenlyloaded is considered as defect model of cementation strucfure of metal plates. Fringedistrbuttons of the defect model in holography and speckle-shearing interferometryare computed,thus for each an experience formula determining defect size is established.The correctness of these formulae are well verified through experiments.

关 键 词：缺陷模型 钣金 胶接结构 剪切散斑干涉 无损检测 

分 类 号：TH878[机械工程—仪器科学与技术] TN247[机械工程—精密仪器及机械]