【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。更多还原

【Abstract】 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.更多还原