铝面板泡沫夹芯结构材料脱粘缺陷的超声脉冲多次反射法检测  

Debond Defect Detection of Foam Sandwich Structure Material With Aluminum Panel by Ultrasonic Multiple Echo-pulse Method

作　　者：肖轲迪 吴君豪[1] 罗明[1] 支凡 张颖[1] XIAO Kedi;WU Junhao;LUO Ming;ZHI Fan;ZHANG Ying(Aerospace Research Institute of Materials&Processing Technology,Beijing 100076)

机构地区：[1]航天材料及工艺研究所,北京100076

出　　处：《宇航材料工艺》2024年第3期77-82,共6页Aerospace Materials & Technology

摘　　要：针对铝面板泡沫夹芯结构材料脱粘缺陷的检测问题,开展了超声脉冲多次反射法检测技术研究。分析了超声脉冲多次反射法的检测原理,制作了人工模拟缺陷试样,进行了自动检测C扫描成像,通过灰度点数量统计方法分析和优化了缺陷识别的结果。研究结果表明,超声脉冲多次反射法能有效检出铝面板泡沫夹芯结构材料中的脱粘缺陷,为材料研制和质量评估提供依据。To detect the debond defects in the foam sandwich structure material with aluminum panel,ultrasonic multiple echo-pulse method was performed.The method principle was analyzed,the artificial defect samples were made,and the automatic C-scan imaging detection was performed.The defect recognition results were analyzed by statistic calculation of the scan image gray pixel numbers.The result shows that the ultrasonic multiple echo-pulse method is effective on debond defect detection of the foam sandwich structure material with aluminum panel and provides basis for material research and evaluation.

关 键 词：超声脉冲多次反射法 铝面板泡沫夹芯结构材料 脱粘缺陷 C扫描成像 

分 类 号：TB553[理学—物理]