摘要
针对碳纤维复合材料试件的孔洞缺陷,采用超声波C扫描成像检测技术对孔洞试件进行扫描,并对得到的C扫描图像定位的缺陷进行分析。在超声波设置合适条件下对孔洞试件扫描得到检测图,分析扫描图像呈现的原因,并对其进行聚类分析,建立了缺陷实际面积与检测面积的关系。对孔洞试样进行反射法扫描和扫描电镜测试,根据扫描波形图和电镜照片,分析分层缺陷情况。研究结果表明:扫描得到的C扫描图像在复合材料缺陷的位置上存在一一对应关系;当孔洞直径大于聚焦探头波束宽度时,孔洞边缘不影响波束穿透,能量不发生损耗;超声波C扫描成像检测技术能够进一步验证孔洞和分层缺陷。
With respect to the hole defects of the carbon fiber composites,the ultrasonic C-scan imaging detection technology was used to scan the specimens with holes,and the position of the defects obtained C-scan were analyze.The holed specimens were scanned,and the appearance of the scanned image was analyzed for causing reasons.Cluster analysis was performed to establish the relationship between the actual area of the defect and the detection area,and reflection scanning and scanning electron microscopy were carried out for the holed specimens and the composite delamination was analyzed according to the scanning waveform and electron microscopy.The research results show that there is a one-to-one correspondence between the C-scan image and the position of the composite material defect,and that when the hole diameter is larger than the beam width of the focusing probe,the edge of the hole does not affect the beam penetration and energy loss.The work indicated that the ultrasonic C-scan imaging detection technology can further verify holes and delamination defects.
作者
方周倩
苗沛源
金肖克
祝成炎
田伟
FANG Zhouqian;MIAO Peiyuan;JIN Xiaoke;ZHU Chengyan;TIAN Wei(College of Textile Science and Engineering(International Institute of Silk),Zhejiang Sci-Tech University,Hangzhou,Zhejiang 310018,China;Key Laboratory of Advanced Textile Materials and Manufacturing Technology,Ministry of Education,Zhejiang Sci-Tech University,Hangzhou,Zhejiang 310018,China)
出处
《纺织学报》
EI
CAS
CSCD
北大核心
2022年第10期71-76,共6页
Journal of Textile Research
关键词
超声波检测
C扫描
碳纤维复合材料
孔洞缺陷
层裂缺陷
ultrasonic testing
C-scan
carbon fiber composite material
hole defect
delamination defect
