| 光弹性贴片材料条纹值标定及不确定度评定 |
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| 引用本文： | 黎小毛,;朱宝良,;李艳洁.光弹性贴片材料条纹值标定及不确定度评定[J].宇航计测技术,2014,34(4):65-68. |
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| 作者姓名： | 黎小毛 ;朱宝良 ;李艳洁 |
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| 作者单位： | 1、中国科学技术大学、精密机械与仪器系，合肥 230026； ;
2、西北核技术研究所，西安 710024 |
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| 摘 要： | 光弹性材料条纹值是应用光弹性材料进行应力或应变测量时需要标定的一个材料常数。针对薄板型光弹性贴片易弯曲、不适合标准圆盘试件法标定的问题，提出一种基于等截面梁加载方式的标定方法，方便快捷地标定了环氧树脂光弹性贴片材料条纹值，并对标定结果进行了不确定度评定。
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| 关 键 词： | 光弹性贴片 材料条纹值 测量不确定度 |
Calibration of Material Fringe Constant for Photoelastic Coating and Its Uncertainty Analysis |
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| LI Xiao-mao,ZHU Bao-liang,LI Yan-jie.Calibration of Material Fringe Constant for Photoelastic Coating and Its Uncertainty Analysis[J].Journal of Astronautic Metrology and Measurement,2014,34(4):65-68. |
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| Authors: | LI Xiao-mao ZHU Bao-liang LI Yan-jie |
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| Institution: | 1、Department of Precision Instruments and Mechanology,University of Science and Technology of China,Hefei 230026;
2、Institute of Northwest Nuclear Technology, Xi′an 710024 |
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| Abstract: | Material fringe canstant of photoelastic coating needs to be calibrated when stress or strain is measured with photoelastic material. Photoelastic coating is flexible and inconvenience to calibrate by the method of standard disk,to solve the problem,a calibration way is applied with uniform beam. The material fringe constant of epoxy phtotoelastic coating is calibrated conveniently,and uncertainty of calibration result is analyzed. |
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| Keywords: | Photoelastic coating Material fringe constant Uncertainty of measurement |
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