FBG监测层合板低速冲击损伤研究

复合材料科学与工程 ›› 2015, Vol. 0 ›› Issue (4): 31-34.

FBG监测层合板低速冲击损伤研究

谷广伟^1*, 王庆涛¹, 李炜^1,2

1.东华大学纺织学院,上海201620;
2.纺织面料技术教育部重点实验室,上海201620

收稿日期:2014-10-20 出版日期:2015-04-28 发布日期:2021-09-14
作者简介:谷广伟(1989-),男,硕士研究生,主要研究方向为复合材料,13262791680@163.com。

RESEARCH OF FBG-BASED COMPOSITE DAMAGE MONITORING SUBJECTED TO LOW-VELOCITY IMPACT

GU Guang-wei^1*, WAG Qing-tao¹, LI Wei^1,2

1. College of Textile Engineering, DongHua University, Shanghai 201620, China;
2. Fabric laboratory of Education Ministry, Shanghai 201620, China

Received:2014-10-20 Online:2015-04-28 Published:2021-09-14

摘要/Abstract

摘要： 玻璃纤维复合材料在外界冲击载荷下发生分层损伤,对后续结构的安全使用造成影响。通过布拉格光栅传感器(FBG)对真空辅助成型的层合板在低速冲击载荷下的响应情况进行了监测,分析了不同厚度方向上层合板应变变化,并与层合板的损伤情况进行了对比。结果表明,波长的变化可以有效反映层合板的应变情况,波长差值可以反映层合板内部的损伤情况;FBG在多次冲击后仍具有良好的监测性能,可用于层合板的长期在线监测,为FBG监测层合板低速冲击损伤提供了依据。

关键词: FBG, 复合材料件, 低速冲击, 分层损伤

Abstract: Glass fiber composite will easily occur internal damage when subjected to low-velocity impact, the impact is particular damaging in the case of composites where the fibers are elastic and brittle as well as the matrix. In this paper, 2J′s impact was conducted to different specimens for 1-7 times to study FBG′s survivability and reflect of FBG to the internal strain of laminate. Strains at thickness direction were analyzed and compared with the damage of the laminates. The result showed that the change of the wavelength can accurately reflect the internal strains of the composite specimens. Meanwhile, FBG was still in good condition after multiple impacts, so it can be used in long-term online monitoring of composite parts. This work built some basis for the monitoring of the composite parts using FBG.

Key words: FBG, composite parts, low-velocity impact, delamination damage

中图分类号:

TB332

谷广伟, 王庆涛, 李炜. FBG监测层合板低速冲击损伤研究[J]. 复合材料科学与工程, 2015, 0(4): 31-34.

GU Guang-wei, WAG Qing-tao, LI Wei. RESEARCH OF FBG-BASED COMPOSITE DAMAGE MONITORING SUBJECTED TO LOW-VELOCITY IMPACT[J]. COMPOSITES SCIENCE AND ENGINEERING, 2015, 0(4): 31-34.

参考文献

[1] 林智育, 许希武, 朱伟. 复合材料层板冲击损伤特性及冲击后压缩强度研究[J]. 航空材料学报, 2011,31(1):74-80.
[2] 陆观, 梁大开, 胡兴柳, 等. 光纤复合材料结构低速冲击判位研究[J]. 仪器仪表学报, 2010, (5): 1041-1045.
[3] 于秀娟, 余有龙, 张敏, 等. 光纤光栅传感器在航空航天复合材料/结构健康监测中的应用[J]. 激光杂志, 2006, 27(1): 1-3.
[4] Cantwell W J, Curtis P T, Morton J. Impact and subsequent fatigue damage growth in carbon fibrelaminates[J]. International journal of fatigue, 1984, 6(2): 113-118.
[5] Cantwell W, Curtis P, Morton J. Post-impact fatigue performance of carbon fiber laminates with non-woven and mixed-woven layers[J]. Composites, 1983, 14(3): 301-305.
[6] Zhao X, Gou J, et al. Strain monitoring in glass fiber reinforced composites embedded with carbon nanopaper sheet using Fiber Bragg Grating (FBG) sensors[J]. Composites Part B: Engineering, 2009, 40(2): 134-140.
[7] 王利恒. 基于应变信号的复合材料层合板低速冲击损伤识别研究[J]. 工程力学, 2014,31(2): 230-237.
[8] 章羽, 赵崇谊, 陈结祥. 基于光纤光栅传感技术的复合材料损伤检测[J]. 量子电子学报, 2013, 30(005): 608-614.
[9] 武湛君, 张博明, 万里冰. 单根光纤光栅监测复合材料固化工艺过程多目标参量技术的研究[J]. 复合材料学报, 2005, 21(6): 82-86.
[10] Lau K, Yuan L, Zhou L, et al. Strain monitoring in FRP laminates and concrete beams using FBG sensors[J]. Composite structures, 2001, 51(1): 9-20.
[11] Maio L, Monaco E, Ricci F, et al. Simulation of low velocity impact on composite laminates with progressive failure analysis[J]. Composite Structures, 2013, 103: 75-85.
[12] Bao P, Yuan M, Dong S, et al. Fiber Bragg grating sensor fatigue crack real-time monitoring based on spectrum cross-correlation analysis[J]. Journal of Sound and Vibration, 2013, 332(1): 43-57.
[13] Loutas T H, Panopoulou A, Roulias D, et al. Intelligent health monitoring of aerospace composite structures based on dynamic strain measurements[J]. Expert Systems with Applications, 2012, 39(9): 8412-8422.
[14] 张宏伟,唐硕. 复合材料层合板的冲击损伤特性研究[J].中国民航大学学报,2012,30(4):11-21.
[15] 崔海波,温卫东,崔海涛. 复合材料层合板冲击损伤及剩余强度研究进展[J].材料科学与工程学报,2005,23(3):466-471.
[16] 杨兴, 胡建明, 戴特力. 光纤光栅传感器的原理及应用研究[J]. 重庆师范大学学报(自然科学版), 2009, 26(4): 101-102.