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| 基于光纤光栅的组合结构界面脱空变形检测 | |
| 引用本文： | 孙曼,植涌,刘浩吾.基于光纤光栅的组合结构界面脱空变形检测[J].传感器与微系统,2005,24(12):77-79. |
| 作者姓名： | 孙曼 植涌 刘浩吾 |
| 作者单位： | 1. 四川大学,水电学院,四川,成都,610064;四川大学,电气信息学院,四川,成都,640064 2. 四川大学,电子信息学院,四川,成都,610064 3. 四川大学,水电学院,四川,成都,610064 |
| 摘 要： | 利用光纤B ragg光栅(FBG)传感器检测钢砼组合桥面板模型界面的脱空(掀起)损伤。模型试验经历了静载、300万次循环疲劳加载和破坏3个阶段。测试结果表明:在静载和疲劳试验阶段,FBG传感器布设点并未发生脱空,传感器测得相应位置的应变值;破坏阶段,在FBG传感器布设点相继出现脱空损伤。利用FBG传感器测得经历300万次循环加载疲劳试验后,钢砼组合模型发生脱空变形的临界应变值,并追踪其发展的全过程,为组合结构界面脱空变形检测提供了一种全新的、可靠的检测方法。 |
| 关 键 词： | 光纤Bragg光栅 传感器 脱空(掀起) 组合结构 界面损伤 |
| 文章编号： | 1000-9787(2005)12-0077-03 |
| 收稿时间： | 11 10 2005 12:00AM |
| 修稿时间： | 2005年11月10日 |
Disengaging deformation detection of composite structure based on fiber Bragg grating |
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| SUN Man,ZHI Yong,LIU Hao-wu.Disengaging deformation detection of composite structure based on fiber Bragg grating[J].Transducer and Microsystem Technology,2005,24(12):77-79. | |
| Authors: | SUN Man ZHI Yong LIU Hao-wu |
| Affiliation: | 1. Coil of Hydranlic Engin, Sichuan University, Chengdu 610064, China; 2. Coil of Elec Engln and Info, Sichuan University, Chengdu 610064, China; 3. Coil of EIct and Info, Sichuan University, Chengdu 610064, China |
| Abstract: | Fiber Bragg grating(FBG) sensors are used to monitor sensor's disengaging(raising) damage of composite steel and concrete structure,test model experienced three periods:dead load,3×10~6 cycles fatigue test and destructive test.Test results show that no disengagement occurs during the first two periods.The data measured show the strain of each location.During destructive test period,the disengaging damages are appeared in succession,and their development is traced.Critical strain value of disengaging deformation of composite steel and concrete structure after fatigue test(3×10~6 cycles) is measured.A brand-new and relinble test method is provided for the disengaging deformation detection of composite structure. |
| Keywords: | fiber Bragg grating(FBG) sensor disengaging(raising) composite structure interface damage |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |
