stress freezing method

The traditional photoelastic stress-freezing method is extended in this paper in which the physical and experimental bases for thr three-dimensional finite deformation photoelasticity are established.

拓展了传统的光弹性应力冻结法，确立了三维有限变形光弹性的物理和实验基础。

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In this paper, the freezing-slice method of three-dimensional photoelasticity is used to analyse the stress of the short-cantilevered bridge pier with rectangular head.

本文总结了用三向光弹冻结切片法解矩形顶帽短悬臂桥墩的应力分析。

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METHODS: Post cores were divided into four groups according to their lengths and diameters. Slices of the models were observed and maximal shear stress of each testing point was calculated with 3 dimensional photoelastic stress freezing method, after vertical and oblique loading.

方法：根据桩的长短、粗细将实验分成4组，通过垂直和斜向加载，采用三维光弹性应力冻结法，经模型切片观察计算出模型各测点的最大剪应力。

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