蜂窝结构复合材料的空气耦合Lamb波检测技术

复合材料科学与工程 ›› 2020, Vol. 0 ›› Issue (2): 62-68.

蜂窝结构复合材料的空气耦合Lamb波检测技术

常俊杰^1,2,3, 李媛媛^1,2*

1.南昌航空大学无损检测技术教育部重点实验室,南昌330063;
2.浙江清华长三角研究院,嘉兴314000;
3.日本探头株式会社,日本横滨232-0033

收稿日期:2019-05-10 出版日期:2020-02-28 发布日期:2020-02-28
通讯作者: 李媛媛(1994-),女,硕士研究生,主要从事超声无损检测方面的研究,liyy628@foxmail.com。
作者简介:常俊杰(1964-),女,博士,副教授,主要从事超声无损检测的应用技术研究及检测设备的研发等方面的工作。
基金资助:
国家自然科学基金项目(11464030);南昌航空大学研究生创新专项资金项目(YC2018044)

AIR COUPLED LAMB WAVE DETECTION TECHNOLOGY FOR HONEYCOMB COMPOSITES

CHANG Jun-jie^1,2,3, LI Yuan-yuan^1,2*

1.Key Lab of Nondestructive Testing, Ministry of Education,Nanchang Hangkong University, Nanchang 330063, China;
2.Yangtze Delta Region Institute of Tsinghua University, Jiaxing 314000, China;
3.Japan Probe Co., Ltd., Japan Yokohama 232-0033, Japan

Received:2019-05-10 Online:2020-02-28 Published:2020-02-28

摘要/Abstract

摘要： 纸质蜂窝结构应避免液体浸入,针对不能使用液体耦合剂对该种材料进行检测的问题,本文在使用空气耦合穿透式C扫成像对蜂窝结构材料进行检测的基础上,提出了使用空气耦合Lamb波对上蒙皮与蜂窝结构间的脱粘缺陷进行检测的方法。建立仿真模型对蜂窝结构中的脱粘缺陷进行检测和超声波传播过程可视化,研究了Lamb波A0模态与工件结构的相互作用,分析了脱粘大小对声波传播的影响。结果表明,应用空气耦合超声导波技术可以较好地实现其脱粘类缺陷的检测,可应用于实际在役检测。

关键词: 蜂窝结构, 空气耦合超声, Lamb波, CFRP, 脱粘缺陷

Abstract: Paper honeycomb structure should avoid liquid immersion. Aiming at solving the problem that liquid coupling agent can′t be used to detect this kind of material, based on the use of air-coupled penetrating C-scan imaging to detect honeycomb structure material, a method of using air-coupled Lamb wave to detect the debonding defect between skin and honeycomb structure was proposed. A simulation model was established to detect debonding defects in honeycomb structures and visualize the ultrasonic propagation process. The interaction between Lamb wave A0 mode and workpiece structure was studied, and the influence of debonding size on acoustic propagation was analyzed. The results show that the application of air-coupled ultrasonic guided wave technology can better achieve the detection of debonding defects, and can be applied to actual in-service detection.

Key words: honeycomb structure, air-coupled ultrasound, lamb wave, CFRP, debonding defect

中图分类号:

TB332

常俊杰, 李媛媛. 蜂窝结构复合材料的空气耦合Lamb波检测技术[J]. 复合材料科学与工程, 2020, 0(2): 62-68.

CHANG Jun-jie, LI Yuan-yuan. AIR COUPLED LAMB WAVE DETECTION TECHNOLOGY FOR HONEYCOMB COMPOSITES[J]. Composites Science and Engineering, 2020, 0(2): 62-68.

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