STUDY OF THE DAMAGE IDENTIFICATION OF COMPOSITE MODAL FLEXIBILITY CURVATURE BEAM STRUCTURE BASED ON THE RATE OF CHANGE OF MODAL FLEXIBILITY CURVATURE

Abstract

Abstract: In this paper, the change ratio of modal flexibility curvature MFCI of composite beam modal was used to discuss the NDT method of composite materials. The natural frequency of the lossy, lossless composite beam and modal displacement amplitude of each node are simulated by the finite element software of ABAQUS. And, the interlaminar damage of composite beam were detected by calculating the MFCI. Then, an example of detecting delamination damage of composite materials with different beams is illustrated, and the results indicate that this method of detecting the composite beam can accurately detect the location delamination damage region whether single-point or multi-point delamination damage and the degree of delamination damage. The simulation results prove that the method of the change ratio of modal flexibility curvature has the significant effect on the judgment of composite beam interlaminar damage.

Key words: composite beam, delamination damage, change ratio of modal flexibility curvature, damage detection

CLC Number:

TB332
V258

YU Zhan-hui, YANG Tao, NIU Xue-juan , DU Yu. STUDY OF THE DAMAGE IDENTIFICATION OF COMPOSITE MODAL FLEXIBILITY CURVATURE BEAM STRUCTURE BASED ON THE RATE OF CHANGE OF MODAL FLEXIBILITY CURVATURE[J]. COMPOSITES SCIENCE AND ENGINEERING, 2015, 0(2): 11-15.

References

[1] 肖军,李勇,李建龙. 自动铺放技术在大型飞机复合材料结构件制造中的应用[J].航空制造技术,2008, (1):50-53.
[2] 卢嘉德.固体火箭发动机复合材料技术的进展及其应用前景[J].固体火箭技术,2001,24(1):46-52.
[3] 郭彦江, 黄俊, 蒙志君, 等. 复合材料层合板贴补修理稳定性研究[J]. 玻璃钢/复合材料, 2013, (2): 13-16.
[4] 陈春露, 刘文博, 张璐, 等. 复合材料层合板分层疲劳性能研究进展[J]. 玻璃钢/复合材料, 2012, (1): 83-86.
[5] Ramadas C,Balasubramaniam K,Joshi M,et al. Interaction of the primary anti-symmetric Lamb mode (A0) with symmetric delaminations: numerical and experimental studies[J].Smart Materials and Structures, 2009, 18(8): 46-50.
[6] Kazys R,Demcenko A,Zukauskas E,et al. Air-coupled ultrasonic invesigation of multilayered composite materials[J]. Ultrasonics, 2006, 44(1):819-822.
[7] Helfen T,Venkat R,Rabe U,et al. Characterisation of CFRP through enhanced ultrasonic testing methods[J]. Applied Composite Materials, 2012,19(6):913-919.
[8] 葛邦,杨涛,高殿斌,等.复合材料无损检测技术研究进展[J].玻璃钢/复合材料,2009,(6):67-71.
[9] 邓晓东,成来飞,梅辉. C/SiC 复合材料的定量红外热波无损检测[J]. 复合材料学报,2009,26(5):112-119.
[10] 赵延广,郭杏林,任明法.基于锁相红外热成像理论的复合材料网格加筋结构的无损检测[J].复合材料学报,2011,28(1):199-205.
[11] 霍雁,张存林. 碳纤维复合材料内部缺陷深度的定量红外检测[J].物理学报,2012,61(14):199-205.
[12] 陈颖,何双起.复合材料粘接结构超声声谐振检测技术[J].宇航材料工艺,2011,41(2):110-112.
[13] 周正干,孙广开,李征.激光超声检测技术在复合材料检测中的应用[J].哈尔滨理工大学学报, 2012,17(6):119-112.
[14] 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].复合玻璃钢/复合材料, 2010, (3) : 62-65.
[15] Pandey A K, Biswas M. Damage Detection in Structures Using Changes in Flexibility [J]. Journal of Sound and Vibration, 1994, 169 (1): 3-17.
[16] 姚京川,杨宜谦. 基于模态柔度曲率改变率的桥梁结构损伤识别方法[J].中国铁道科学, 2008, 29(2): 1-7.
[17] 王菡,童明波. 基于定量曲率模态分析的分层损伤检测研究[J]. 航空计算技术, 2012, 42(2): 69-72.