光塑性法基础研究及其应用  

A Basic Study on Photoplasticity with Application

作　　者：张祖巡[1] 周崇华[2] 曹正元[1] 

机构地区：[1]同济大学 [2]武汉工业大学

出　　处：《上海力学》1990年第4期31-40,共10页Chinese Quarterly Mechanics

摘　　要：光塑性法是基于透明双折射材料受力超过其弹性极限状态时光学图象解释的一种全场方法。本文简要地介绍普通光塑性法的基本原理,对光塑性材料的力学、光学性能进行了测定,并研究聚碳酸酯材料的应变一条纹级数关系,建立了其应变—光学定律,还把本法应用于一个典型例子的研究,获得了满意的结果。The technique of photoplasticity is a full-field optical measurement method to study the state of stress and strain of prepared transparent models made of transparent birefringent materials stressed beyond their elastic limits, in elastoplastic or in plastic stages. This paper briefly relates the fundamental principles in general photoplasticity, the measurement of the mechanical and optical properties of the photoplastic material, and the establishment of the strain-optic law of polycarbonate according to its strain-fringe relation by investigation.

关 键 词：光塑性法 聚碳酸酯 全场分析 应力 

分 类 号：O348.1[理学—固体力学]