###
工程科学与技术:2013,45(2):167-175
←前一篇   |   后一篇→
本文二维码信息
码上扫一扫!
界面贴合型缺陷的超声红外热波检测与识别
(1.第二炮兵工程大学 动力工程系;2.中国空气动力研究与发展中心)
Application of Ultrasonic Infrared Thermal Wave Technique in Detection and Recognition of Interface Kissing Damage
(1.Dept. of Power Eng.,The Second Artillery Eng. Univ.;2.China Aerodynamics Research and Development Center)
摘要
图/表
参考文献
相似文献
附件
本文已被:浏览 2859次   下载 104
投稿时间:2012-10-07    修订日期:2012-11-22
中文摘要: 为了实现对复合材料内部界面贴合性缺陷的快速检测和识别,采用超声红外热波方法进行了检测研究。建立了一个含有表面微裂纹、边缘垂直裂纹、分层、脱粘等4种缺陷类型界面贴合型缺陷的复合材料有限元模型,进行了超声热波检测数值仿真。并分别制作了碳纤维增强复合材料分层损伤试件、玻璃纤维复合材料疲劳裂纹试件和T700/BA202环氧树脂基复合材料冲击损伤试件,开展了超声红外热波检测实验和缺陷识别研究。结果表明,超声热波方法适合于复合材料裂纹、分层、冲击损伤等界面贴合型缺陷的快速检测和识别,而对脱粘等非界面贴合型缺陷则无检测效果。微小裂纹(≤0.001 m)可以被检测出,对浅表面(0.001 m深)缺陷的识别精度达95%,且裂纹越长,裂纹面越大越容易被检出,对0.002 m长的裂纹的检测误差为13.88%,与超声C扫方法相比,超声热波方法对冲击损伤大小的识别误差为5.7%。
Abstract:In order to quickly detect the interface kissing infect in composite materials, the ultrasonic infrared thermal wave (UITW) technique was researched. By established a finite element model, the UITW detection for surface micro-crack, border vertical crack, delamination and debonding damage in composite materials were numerically simulated. Then, detection experiments for delamination specimen of carbon fiber reinforced composite, fatigue crack specimen of glass fiber reinforced composite and impact damage specimen of T700/BA202 epoxy resin composites were carried out by using the UITW detection method, and the detection results were analyzed and recognized. The results showed that UITW is suitable for quickly detecting and recognizing composite materials interface kissing type damages. Micro-crack (≤0.001 m) could be detected, and the longer the crack and the bigger the crack surface, the easier the crack can be detected. The recognition accuracy for shallow defect (about 0.001 m deep) is up to 95%,and the detection error for 0.002 m crack is 13.88%. Comparing with the ultrasonic C-scan result, the error of size recognition for impact damage is 5.7%. But it has no detection result for debonding damage.
文章编号:201200749     中图分类号:    文献标志码:
基金项目:国家自然科学基金资助项目(51075390;51275518);陕西省自然科学青年基金资助项目(2012JQ8018)
作者简介:
引用文本:
金国锋,张炜,杨正伟,宋远佳,田干.界面贴合型缺陷的超声红外热波检测与识别[J].工程科学与技术,2013,45(2):167-175.
Jin Guofeng,Zhang Wei,Yang Zhengwei,Song Yuanjia,Tian Gan.Application of Ultrasonic Infrared Thermal Wave Technique in Detection and Recognition of Interface Kissing Damage[J].Advanced Engineering Sciences,2013,45(2):167-175.