Research on deformation monitoring of CFRP plate using distributed optical fiber sensing technology

doi:10.19936/j.cnki.2096-8000.20211228.007

Abstract

Abstract: Carbon fiber reinforced polymer (CFRP) has been widely used in supporting and strengthening structures due to its excellent tensile strength and corrosion resistance. In order to study the deformation characteristics of CFRP in service, distributed optical fiber sensors were placed on the CFRP plate to carry out deformation monitoring tests of CFRP plate under two working conditions of damage and non damage, and resistance strain gauges were placed on the CFRP plate for strain test comparison. The experimental results show that the distributed optical fiber sensor can effectively measure the strain information of the CFRP plate, and the measured strain is basically consistent with the finite element analysis value and the resistance strain gauge value. The continuous arrangement of the distributed optical fiber sensor is more realistic than the fixed-point arrangement to reflect the deformation of the CFRP plate.

Key words: CFRP, distributed optical fiber sensor, strain, damage monitoring

CLC Number:

TB332

HE Jian-ping, SHEN Feng, ZHANG Shi-hai. Research on deformation monitoring of CFRP plate using distributed optical fiber sensing technology[J]. COMPOSITES SCIENCE AND ENGINEERING, 2021, 0(12): 48-52.

References

[1] 王磊, 李威, 陈爽, 等. 海水浸泡对FRP筋-珊瑚混凝土粘结性能的影响[J]. 复合材料学报, 2018, 35(12): 3458-3465.
[2] 杜云兴, 侯春旭, 周芬. 不均匀胶层对CFRP板加固梁的界面应力影响[J]. 湖南大学学报(自然科学版), 2017, 44(3): 61-67.
[3] 宗俊达, 姚卫星. FRP复合材料剩余刚度退化复合模型[J]. 复合材料学报, 2016, 33(2): 280-286.
[4] 李水扬, 李峰, 马青那, 等. 动态监测技术在FRP试验中的应用[J]. 现代交通技术, 2015, 12(5): 35-39.
[5] 蔚道祥, 杨宇清, 鲁洪亮, 等. 声发射检测技术在FRP复合材料容器检测中的应用研究[J]. 广州化工, 2019, 47(14): 152-153.
[6] 李伟, 王宇, 吴超群, 等. 基于声发射检测技术的FRP复合材料损伤试验研究[J].化工机械, 2011, 38(6): 692-696.
[7] SCHULTE K, BARON C. Load and failure analysis of CFRP laminates by means of electrical resistivity measurements[J]. Composites Science and Technology, 1989, 36(1): 63-65.
[8] 蒋园园. 光纤光栅传感器应用于复合材料损伤监测的研究[D]. 武汉: 武汉理工大学, 2012.
[9] 吴慧峰. 基于光纤光栅传感技术的机翼形变测量方法研究与分析[J]. 桂林航天工业学院学报, 2017, 4: 359-364.
[10] 李小伟. 基于光纤光栅传感技术的风机叶片检测研究[D]. 南京: 南京航空航天大学, 2013.
[11] XU J, HE J P, ZHANG L. Collapse prediction of karst sinkhole via distributed Brillouin optical of sensor[J]. Measurement, 2017, 100: 68-71.
[12] CHEN H J, HE J P, XUE Y, et al. Experimental study on sinkhole collapse monitoring based on distributed Brillouin optical fiber sensor[J]. Optik, 2020, 216(164825): 1-10.
[13] WANG H P, NI Y Q, DAI J G, et al. Interfacial debonding detection of strengthened steel structures by using smart CFRP-FBG composites[J]. Smart Materials and Structures, 2019, 28(115001): 1-13.
[14] WANG H P, DAI J G. Strain transfer analysis of fiber Bragg grating sensor assembled composite structures subjected to thermal loading[J]. Composites Part B: Engineering, 2019, 162: 303-313.
[15] CULVERHOUSE D, FARAHI F. Potential of stimulated Brillouin scattering as sensing mechanism for distributed temperature sensors[J]. Electronics Letters, 1989, 25: 913-915.
[16] HORIGUCHI T, KURASHIMA T, TATEDA M. A technique to measure distributed strain in optical fibers[J]. IEEE Photonics Technology Letters, 1990, 2(5): 352-354.