| 光纤光栅传感网络应用于玻璃纤维复合材料构件损伤检测的试验研究 |
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| 引用本文： | 陈堃,朱启荣,沈维亮. 光纤光栅传感网络应用于玻璃纤维复合材料构件损伤检测的试验研究[J]. 实验力学, 2016, 31(4): 475-482. DOI: 10.7520/1001-4888-15-189 |
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| 作者姓名： | 陈堃 朱启荣 沈维亮 |
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| 作者单位： | 同济大学航空航天与力学学院,上海,200092 |
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| 基金项目： | 国家自然科学基金(112272239);国家自然科学基金重点项目(11532005);上海市自然科学基金(15ZR1443900) |
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| 摘 要： | 将光纤光栅传感网络埋入玻璃纤维复合材料试件后,通过无损试件与有损试件的准静态弯曲对比试验研究,分析了测量过程中反映损伤位置以及损伤程度的光纤光栅参数。然后使用ANSYS有限元软件对其进行数值模拟计算,并将数值模拟的结果与试验测得的结果相对比,验证了应用光纤光栅传感网络利用准静态加载方法测量损伤的可行性以及准确性。本文研究结果可为利用FBG光纤传感网络对实际工程中复合材料结构的在线健康监测提供实验基础。
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| 关 键 词： | 光纤光栅传感器 玻璃纤维 弯曲试验 损伤测量 |
Experimental Research on Damage Detection of Glass-fiber Composite Materials with FBG Sensing Network |
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| CHEN kun,ZHU Qi-rong and SHEN Wei-liang. Experimental Research on Damage Detection of Glass-fiber Composite Materials with FBG Sensing Network[J]. Journal of Experimental Mechanics, 2016, 31(4): 475-482. DOI: 10.7520/1001-4888-15-189 |
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| Authors: | CHEN kun ZHU Qi-rong SHEN Wei-liang |
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| Affiliation: | School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai 200092, China;School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai 200092, China;School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai 200092, China |
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| Abstract: | After fiber Bragg grating (FBG) sensing network is embedded into glass fiber composite specimens, through comparative experimental study of quasi-static bending between nondestructive and lossy specimens, the analyses of fiber Bragg grating parameters, which reflect damage position and damage degree in measurement process, was carried out. Then, ANSYS finite element software was used for numerical simulation and the results of numerical simulation was compared with that from experimental measurement. Then, the feasibility and accuracy of FBG sensing network method applied to damage monitoring of composite material specimen were verified. Above results may provide an experimental basis for online health monitoring of composite structure in practical engineering. |
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| Keywords: | Fiber Bragg grating (FBG) sensor glass fiber bending test damage measurement |
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