This article has made an photoelastic study of the influences of geological structure on the stress distribution of wall rocks and an estimate of the rational range of reinforcement.
本文介绍了用光弹法讲究地质构造对洞室应力分布的影响，预估围岩的合理加固范围。
A photoelastic study for the viscoelastic stress-concentration factors in bars with a round hole under axial tension load, using self-made viscoelastic materials is presented in this paper.
本文利用自制的光粘弹性材料，用光弹性法研究了在轴向拉伸荷载作用下带有圆孔的杆件中的粘弹性应力集中系数。
The study is helpful to photoelastic analysis on oblate extrusion pipe.
此项研究结果可为扁挤压筒的光弹性分析提供帮助。
Conclusion: Photoelastic stress analysis method can be used in the study of the stress distribution in ceramic dental crown with bilayer structure.
结论：光弹应力分析法适用于双层结构全瓷冠应力分布的研究，可用于观测全瓷冠的应力分布趋势及其变化。
In photoelastic stress analysis, the accuracy of analysis can be improved by using fractional isochromatic fringes, so it is very important to study the approach for producing fractional fringes.
在光弹应力分析中，利用分数级条纹可以提高分析精度，于是，产生分数级条纹的方法研究就变得非常重要。
The main purpose of our study is to use such material in photoelastic-plastic stress analysis.
研究的主要目的是把这种材料应用于光弹塑性应力分析。
The photoelastic coating method is used to study the phenomenon of stress concentration around the hole in the 3D braiding composite materials. Some results are obtained.
采用反射光弹技术考察了编织复合材料的孔边应力集中现象，得到了有益的结果。
The photoelastic coating method is used to study the phenomenon of stress concentration around the hole in the 3D braiding composite materials. Some results are obtained.
采用反射光弹技术考察了编织复合材料的孔边应力集中现象，得到了有益的结果。
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