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基于模量/应变波耦合特性的FBG碳纤维增强塑料复合材料拉伸断裂监测

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Keywords: 碳纤维增强塑料复合材料,光纤Bragg光栅,断裂监测,模量,应变波

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Abstract:

从光纤Bragg光栅(FBG)反射中心波长随碳纤维增强塑料复合材料(CFRP)拉伸试件表面应变变化敏感特性的角度,详细研究了拉伸过程中FBG中心波长的拉伸变化速率(即CFRP的宏观弹性模量)与复合材料内部断裂饱和状态的相关性和断裂瞬间试件表面的应变波响应特性,即:在拉伸过程中,CFRP拉伸试件的宏观弹性模量随着内部断裂的发生而不断减小,且在试件出现明显应力松弛状态前趋于平稳;应力松弛状态出现时,断裂区域表面接收的应变波响应略大于其他区域。通过设计相应排布形式,将FBG与CFRP断裂监测相结合,提出了一种基于FBG传感的CFRP断裂分阶段监测方法。该方法中传感探头直接与CFRP试件耦合,测量及传导光路全光纤化,可实现对CFRP断裂状态的绝对监测。

References

[1]  Dvorak G J. Composite materials: inelastic behavior, damage, fatigue and fracture [J]. International Journal of Solids and Structures, 2000, 37(1): 155-170.
[2]  Post N L, Case S W, Lesko J J. Modeling the variable amplitude fatigue of composite materials: a review and evaluation of the state of the art for spectrum loading [J]. International Journal of Fatigue, 2008, 30(12): 2064-2086.
[3]  Zhu S, Mizuno M, Kagawa Y, et al. Monotonic tension, fatigue and creep behavior of SiC-fiber-reinforced SiC-matrix composites: a review [J]. Composites Science and Technology, 1999, 59(6): 833-851.
[4]  Withers P J, Bennett J, Hung Y, et al. Crack opening displacements during fatigue crack growth in Ti-SiC fiber metal matrix composites by X-ray tomography [J]. Materials Science and Technology, 2006, 22(9): 1052-1058.
[5]  Kinra V K, Ganpatye A S, Maslov K. Ultrasonic ply-by-ply detection of matrix cracks in laminated composites [J]. Journal of Nondestructive Evaluation, 2006, 25(1): 39-51.
[6]  Okafor A C, Singh N, Singh N. Acoustic emission detection and prediction of fatigue crack propagation in composite patch repairs using neural networks [J]. AIP Conference Proceedings, 2007, 894(1): 1532-1539.
[7]  Bernasconi A, Carboni M, Comolli L. Monitoring of fatigue crack growth in composite adhesively bonded joints using fiber Bragg gratings [J]. Procedia Engineering, 2011, 10: 207-212.
[8]  Schweikhard K A, Richards W L, Theisen J, et al. Flight demonstration of X-33 vehicle health management system components on the F/A-18 systems research aircraft [R]. NASA/TM-2001-209037, 2001.
[9]  Hunt S R, Hebden I G.Validation of the Eurofighter Typhoon structural health and usage monitoring system [J]. Smart Materials and Structures, 2001, 10(3): 497-503.
[10]  李望南, 蔡洪能, 郑 杰. 基于宏微观分析的碳纤维增强高分子复合材料强度性能表征 [J]. 复合材料学报, 2013, 30(1): 244-251.Li Wangnan, Cai Hongneng, Zheng Jie. Characterization of strength of carbon fiber reinforced polymer composite based on micromechanics [J]. Acta Materiae Compositae Sinica, 2013, 30(1): 244-251.
[11]  Barbieri E, Meo M. A meshless cohesive segments method for crack initiation and propagation in composites [J]. Applied Composite Materials, 2011, 18(1): 45-63.
[12]  Andersons J, Tarasovs S, Spārnin? E. Finite fracture mechanics analysis of crack onset at a stress concentration in a UD glass/epoxy composite in off-axis tension [J]. Composites Science and Technology, 2010, 70(9): 1380-1385.
[13]  Sadhukhan S, Dutta T, Tarafdar S. Crack formation in composites through a spring model [J]. Physica A: Statistical Mechanics and its Applications, 2011, 390(4): 731-740.
[14]  Myriounis D P, Kordatos E Z, Hasan S T, et al. Crack-tip stress field and fatigue crack growth monitoring using infrared lock-in thermography in A359/SiCp composites [J]. Strain, 2011, 47(s1): e619-e627.
[15]  Hu H, Lee C H, Wu C B, et al. Detection of matrix cracks in composite laminates by using the modal strain energy method [J]. Mechanics of Composite Materials, 2010, 46(2): 117-132.
[16]  Maimí P, Camanho P P, Mayugo J A, et al. Matrix cracking and delamination in laminated composites. Part II: Evolution of crack density and delamination [J]. Mechanics of Materials, 2011, 43(4): 194-211.
[17]  Aboudi J, Ryvkin M. Dynamic stresses created by the sudden appearance of a transverse crack in periodically layered composites [J]. International Journal of Engineering Science, 2011, 49(7): 694-710.
[18]  芦吉云, 梁大开, 潘晓文. 基于准分布式光纤光栅传感器的机翼盒段载荷监测 [J]. 南京航空航天大学学报, 2009, 41(2): 217-221.Lu Jiyun, Liang Dakai, Pan Xiaowen. Load measurement of wing box based on distributed fiber Bragg grating sensors [J]. Journal of Nanjing University of Aeronautics & Astronautics, 2009, 41(2): 217-221.
[19]  Karalekas D, Cugnoni J, Botsis J. Monitoring of process induced strains in a single fibre composite using FBG sensor: a methodological study [J]. Composites Part A: Applied Science and Manufacturing, 2008, 39(7): 1118-1127.

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