Study on Damage Detection of Carbon Fiber Composite Laminates via Electro-Mechanical Impedance Method
-
摘要: 为了验证压电阻抗(Electro-Mechanical impedance,EMI)技术在复合材料结构无损检测中的适用性,搭建损伤检测实验平台,设置不同的工况,测量不同损伤状态下PZT的电导曲线。利用均方根偏差RMSD对电导曲线进行分析,得出了损伤程度、损伤位置与RMSD值之间的关系:损伤程度增大,PZT测得电导曲线的偏移量增大,体现为RMSD值增大;与损伤位置间距越小的PZT测得电导曲线的RMSD值越大。验证了压电阻抗法应用于复合材料结构的适用性,并利用损伤距离与RMSD值之间的关系进行初步定位实验,得到精度较高的定位拟合曲线。Abstract: In order to verify the applicability of Electro-Mechanical impedance (EMI) technology in the nondestructive testing of composite structures, a damage detection experimental platform was set up, and different conductance conditions were set up to measure the conductance curves of PZT with different damage states. Through the analysis of the conductance curve based on the RMSD, the relationship between the damage degree and the location of damage and the RMSD value is obtained. The greater the damage degree is, the greater the RMSD value of the conductance curve which is measured by PZT and the larger the distance from the damage location to PZT is, and the larger the RMSD value of the conductance curve is. The validity of the application of EMI to carbon fiber reinforced polymer(CFRP) is verified. With the relationship between the damage distance and the RMSD value, a preliminary positioning experiment is carried out and obtains a high precision location fitting curve.
-
Key words:
- CFRP /
- damage detection /
- Electro-Mechanical impedance /
- RMSD /
- damage location
-
表 1 各损伤工况同无损工况对比RMSD值
工况2 工况3 工况4 PZT1 0.481 05 0.617 06 0.658 04 PZT2 0.114 01 0.157 71 0.182 80 表 2 电导曲线计算的RMSD值
编号 PZT1 PZT2 PZT3 PZT4 PZT5 距离/mm 50 150 250 350 450 RMSD 0.02543 0.01733 0.01624 0.01511 0.01015 表 3 开孔后各PZT的RMSD值
编号 PZT1 PZT2 PZT3 PZT4 PZT5 距离/mm 350 250 150 50 50 RMSD 0.015 21 0.015 72 0.018 01 0.026 12 0.025 80 表 4 拟合曲线计算的RMSD值
距离/mm 350 250 150 50 RMSD 0.015 29 0.015 96 0.017 52 0.025 38 表 5 各距离下的RMSD误差
编号 PZT1 PZT2 PZT3 PZT4 PZT5 距离/mm 350 250 150 50 50 误差/% 0.60 1.62 2.82 2.90 1.64 -
[1] 赵越让.适航理念与原则[M].上海:上海交通大学出版社, 2013 https://repository.tudelft.nl/islandora/object/uuid%3Aa869dbe4-0280-4443-afb7-a3a386e3824bZhao Y R. The concept and principle of airworthiness[M]. Shanghai:Profile of Shanghai Jiao Tong University Press, 2003(in Chinese) https://repository.tudelft.nl/islandora/object/uuid%3Aa869dbe4-0280-4443-afb7-a3a386e3824b [2] 李忠良.基于压电阻抗健康监测的实验及有限元仿真分析[D].杭州: 浙江大学, 2013 http://cdmd.cnki.com.cn/Article/CDMD-10335-1014171175.htmLi Z L. Experimental and numerical simulation of health monitoring based on EMI[D]. Hangzhou: Zhejiang University, 2013(in Chinese) http://cdmd.cnki.com.cn/Article/CDMD-10335-1014171175.htm [3] 冯康军.飞机复合材料结构损伤容限评定及适航审定技术研究[D].南京: 南京航空航天大学, 2010 http://cdmd.cnki.com.cn/Article/CDMD-10287-1011292795.htmFeng K J. Research on damage tolerance evaluation and airworthiness of composite aircraft structure[D]. Nanjing: Nanjing University of Aeronautics and Astronautics, 2010(in Chinese) http://cdmd.cnki.com.cn/Article/CDMD-10287-1011292795.htm [4] 徐勇超, 董恩生, 姜亦林.一种飞机复合材料构件损伤检测的新方法[J].玻璃钢/复合材料, 2010, (3):62-65, 71 doi: 10.3969/j.issn.1003-0999.2010.03.016Xu Y C, Dong E S, Jiang Y L. An new approach for damage detection of composite components on aircraft[J]. Fiber Reinforced Plastics/Composites, 2010, (3):62-65, 71(in Chinese) doi: 10.3969/j.issn.1003-0999.2010.03.016 [5] 齐共金, 雷洪, 耿荣生, 等.国外航空复合材料无损检测技术的新进展[J].航空维修与工程, 2008, (5):25-28 doi: 10.3969/j.issn.1672-0989.2008.05.014Qi G J, Lei H, Geng R S, et al. Recent progress in foreign nondestructive testing techniques for aeronautical composite materials[J]. Aviation Maintenance & Engineering, 2008, (5):25-28(in Chinese) doi: 10.3969/j.issn.1672-0989.2008.05.014 [6] Liang C, Sun F P, Rogers C A. Coupled electro-mechanical analysis of adaptive material systems-determination of the actuator power consumption and system energy transfer[J]. Journal of Intelligent Material Systems and Structures, 1994, 8(4):335-343 doi: 10.1177-1045389X9400500102/ [7] Liang C, Sun F P, Rogers C A. Electro-mechanical impedance modeling of active material systems[C]//North American Conference on Smart Structures and Materials. International Society for Optics and Photonics, 1994: 171-186 https://www.researchgate.net/publication/231078022_Electro-mechanical_impedance_modeling_of_active_material_systems [8] Liang C, Sun F P, Rogers C A. An impedance method for dynamic analysis of active material systems[J]. Journal of Vibration and Acoustics, 1994, 116(1):120-128 http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=10.1177/1045389X9700800405 [9] Zagrai A N, Giurgiutiu V. Electro-mechanical impedance method for crack detection in thin plates[J]. Journal of Intelligent Material Systems and Structures, 2001, 12(10):709-718 doi: 10.1177/104538901320560355 [10] Giurgiutiu V, Redmond J M, Roach D P, et al. Active sensors for health monitoring of aging aerospace structures[C]//SPIE's 7th Annual International Symposium on Smart Structures and Materials. Newport Beach, CA, United States: SPIE, 2000: 294-305 https://www.researchgate.net/publication/255412843_Active_sensors_for_health_monitoring_of_aging_aerospace_structures [11] Tseng K K H, Naidu A S K. Non-parametric damage detection and characterization using smart piezoceramic material[J]. Smart Materials and Structures, 2002, 11(3):317-329 doi: 10.1088-0964-1726-11-3-301/ [12] Tseng K K, Wang L S. Structural damage identification for thin plates using smart piezoelectric transducers[J]. Computer Methods in Applied Mechanics and Engineering, 2005, 194(27-29):3192-3209 doi: 10.1016/j.cma.2004.08.007 [13] Yan Y J, Yam L H. Online detection of crack damage in composite plates using embedded piezoelectric actuators/sensors and wavelet analysis[J]. Composite Structures, 2002, 58(1):29-38 http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=22044967be5e1d7168d58b4e00df734b [14] YanY J, Yam L H, Li Y Y, et al. Detection of crack damage in composite laminates using smart material and wavelet analysis[C]//Proceedings of the 8th International Congress of Sound and Vibration. Hong Kong: Hong Kong Polytechnic University, 2001: 2349-2356 [15] Song H, Lim H J, Sohn H. Electromechanical impedance measurement from large structures using a dual piezoelectric transducer[J]. Journal of Sound and Vibration, 2013, 332(25):6580-6595 doi: 10.1016/j.jsv.2013.07.023 [16] Wang D S, Song H Y, Zhu H P. Numerical and experimental studies on damage detection of a concrete beam based on PZT admittances and correlation coefficient[J]. Construction and Building Materials, 2013, 49:564-574 doi: 10.1016/j.conbuildmat.2013.08.074 [17] Naidu A S K, Soh C K. Damage severity and propagation characterization with admittance signatures of piezo transducers[J]. Smart Materials and Structures, 2004, 13(2):393-403 http://www.wanfangdata.com.cn/details/detail.do?_type=perio&id=99f1abc7bb1d8b0ceab588985b47b4e9