| 飞机座舱有机玻璃机械加工应力测量方法研究 |
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| 引用本文： | 王自明.飞机座舱有机玻璃机械加工应力测量方法研究[J].航空学报,1991,12(8):417-421. |
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| 作者姓名： | 王自明 |
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| 作者单位： | 北京航空材料研究所 |
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| 摘 要： | 通过实验研究了有机玻璃由于机械加工所产生的双折射条纹的性质及其与机械加工应力的关系;建立了一种定量测定和无损检测平板有机玻璃和飞机座舱有机玻璃件机械加工应力的新方法:用光弹性仪可以测得与双折射有关的干涉条纹,则可确定加工应力。
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| 关 键 词： | 机械加工应力 有机玻璃 双折射测量法 |
INVESTIGATION OF A METHOD FOR DETERMINING MACHINING STRESS IN POLYMETHYLMETHACRYLATE (PMMA)OF AIRPLANE CANOPIES |
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| Institute of Aeronautical Materials,Keijing Wang Ziming.INVESTIGATION OF A METHOD FOR DETERMINING MACHINING STRESS IN POLYMETHYLMETHACRYLATE (PMMA)OF AIRPLANE CANOPIES[J].Acta Aeronautica et Astronautica Sinica,1991,12(8):417-421. |
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| Authors: | Institute of Aeronautical Materials Keijing Wang Ziming |
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| Institution: | Institute of Aeronautical Materials |
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| Abstract: | The nature of the birefringence fringe and the relationship between the birefringence fringe and the residual stress induced by machining in PMMA were investigated by means of experiment.A mew method--birefringence measurement has been established for the quantitative determination and nondestructive evaluation of the machining stress in PMMA plates and the transparent pieces of airplane cabines. Besides, it has been discussed how to separate the birefringence induced by machining from the initial one quantitatively and how to get the distribution of the birefringence induced by machining through thickness. Birefringence measurement has been used in engineering. |
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| Keywords: | machining stress polymethylmethacrylate (PMMA) birefringence measurement photoelasticity canopy |
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