文章摘要
高晓进.金属夹心CFRP复合材料超声检测方法[J].声学技术,2019,38(5):526~531
金属夹心CFRP复合材料超声检测方法
An ultrasonic detection method for metal sandwich CFRP composite
投稿时间:2018-06-17  修订日期:2018-08-20
DOI:10.16300/j.cnki.1000-3630.2019.05.008
中文关键词: 复合材料  金属夹心  相位法  超声检测
英文关键词: composite  metal sandwich  phase method  ultrasonic method
基金项目:
作者单位E-mail
高晓进 航天特种材料及工艺技术研究所, 北京 100074 gao19870311@163.com 
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中文摘要:
      新型机翼、弹翼等结构已采用金属夹心碳纤维增强(Carbon Fiber Reinfored Polymer,CFPR)复合材料结构。针对该类复合材料结构的材料组成和结构特点,分析和对比常用的超声穿透法和超声反射法能否对金属夹心CFPR复合材料内部质量进行检测,提出了先采用超声C扫穿透法确定缺陷的平面位置,然后采用高分辨率超声A扫反射法确定复合材料中分层缺陷及采用超声相位法确定复合材料与金属间的脱粘缺陷的方法。采用提出的方法检测带有预置缺陷的试样和实际产品。检测结果表明,提出的方法可准确检测试样中大小为5 mm×5 mm的预置人工分层和脱粘,且能准确检测实际产品中的缺陷。
英文摘要:
      The structure of metal sandwich carbon fiber reinfored polymer (CFRP) composite has been widely adopted in new aircraft wing, missile wing and others. The applicabilities of the common ultrasonic penetration and ultrasonic reflection methods for the detection of the metal sandwich CFRP composite are analyzed respectively according to its material and structure characteristics. On this basis, a method combining ultrasonic C-scan penetration method, high resolution ultrasonic A-scan reflection method and ultrasonic phase method is proposed. Experimental researches on the composite sample with artificial defects and on the actual products have been conducted respectively. The results show that the proposed combination method can detect all the 5 mm×5 mm artificial lamination and debonding defects in the sample and the lamination and debonding defects in the actual products.
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