摘要
The method for self diagnose and self repair of composite materials using hollow optical fiber with injected adhesive is first put forward. The investigation and analysis of pass light mechanism of hollow optical fiber are made in detail. The measurement principle, method and experimental research on self diagnose of the rupture place in composite materials by using hollow optical fiber are also put forward. Experiments on composite materials with or without embedded optical fiber are performed according to Chinese test standards in order to find out the comparable characters. Based on the experimental results, it is found that there is only little difference on the mechanical behavior of composite materials with or without embedded hollow optical fibers. In other words, this method can be used in engineering practice, such as in smart structures and other fields. Finally the general scheme of the entire system is given.
首次提出利用空心光纤灌注胶液的方法进行复合材料的自诊断与自修复。文中具体分析了空心光纤的传光机理 ,介绍了利用空心光纤进行复合材料断裂位置测量的原理、方法和实验研究。依据国家有关的复合材料测试标准对环氧树脂复合材料埋入与不埋空心光纤进行了对比实验 ,实验结果表明空心光纤埋入树脂基复合材料中对其性能的影响是比较小的。因此 ,该方法在工程结构中极有应用价值。最后 ,给出了正在进行的研究系统的一个应用事例。
基金
国家自然科学基金!( 5 9875 0 3 6)
航空科学基金!( 0 0 G5 2 0 65 )&&
