Bonding defect detection of multilayer composites by acoustic resistance method
-
摘要:
用于直升机桨叶的新型多层复合材料以不锈钢、橡胶、加热组件和玻纤黏接而成,因其结构复杂且工作环境恶劣,亟需进行严格的质量控制。常规超声检测信号混叠现象严重,无法检出橡胶与玻纤黏接层缺陷。在分析复合材料机械阻抗的基础上,搭建了基于声阻法检测该复合材料的模型,并推导出两个用以表征黏接缺陷信息的参量。试验结果表明,使用机械阻抗的相位与幅值能较好地表征材料缺陷的深度与大小信息,声阻法检测复材黏接缺陷具有较高的可靠性和缺陷检出率。
Abstract:A new multilayer composite material made of stainless steel, rubber, heating components and glass fiber bonded for helicopter blades requires strict quality control due to its complex structure and harsh working environment. The signal aliasing phenomenon of conventional ultrasonic detection is serious and the defects of rubber and glass fiber bonding layer cannot be detected. In this paper, based on the analysis of the mechanical impedance of the composite material, a model based on the acoustic resistance method was established to detect the composite material, and two parameters were derived to characterize the bonding defect information. Experiments showed that the phase and amplitude of mechanical impedance can be used to characterize the depth and size of material defects. The acoustic resistance method had high reliability and high defect detection rate.
-
-
Table 2 3种理想元件的阻抗和导纳
元件 位移d 速度v 加速度a 阻抗 导纳 阻抗 导纳 阻抗 导纳 阻尼 jωc 1/jωc c 1/c c/jω jω/c 弹簧 k 1/k k/jω jω/k -k/ω2 -ω2/k 质量块 -ω2m -1/ω2m jωm 1/jωm m 1/m 
下载: 导出CSV
Table 3 阻抗检测仪检测试块所得数据
试块序号 缺陷类型 面积/mm2 埋深/mm 相位/(°) 幅值/dB 1 上层缺陷 1 300 0.50 166.0 3.4 1 下层缺陷 1 250 2.53 31.0 5.6 2 下层缺陷1 120 2.53 56.0 4.5 2 下层缺陷2 180 2.53 58.0 4.7 2 下层缺陷3 250 2.53 56.0 4.6 2 下层缺陷4 700 2.53 61.0 4.5
下载: 导出CSV
-
[1] 陈志强基于机械阻抗法的多层复合结构的脱黏缺陷检测成都电子科技大学2020陈志强 ．基于机械阻抗法的多层复合结构的脱黏缺陷检测[D]．成都：电子科技大学,2020. [2] 潘冰 ．无损检测技术在碳纤维复合材料检测中的应用研究[J]．中国纤检,2023(4)：67-68. [3] 姜艺玺,宋志杰,杜婷婷,等 ．无损检测技术在复合材料检测中的价值[J]．信息记录材料,2019,20(6)：55-56. [4] 赵贵强 ．基于声振法的飞机复合材料构件损伤检测技术研究[J]．电声技术,2022,46(3)：90-92. [5] 陈祎婷,陆铭慧,朱颖,等 ．多层包铁结构超声反射频谱数值仿真[J]．压电与声光,2022,44(6)：998-1006. [6] THOMSON W T ．Transmission of elastic waves through a stratified solid medium[J]．Journal of Applied Physics,1950,21(2)：89-93. [7] 朱川 ．机械阻抗的研究现状及应用[J]．科技创新导报,2017,14(15)：33-35. [8] CHEN J ,BAI X L ,YANG K J ,et al ．Simultaneously measuring thickness,density,velocity and attenuation of thin layers using V(z,t) data from time-resolved acoustic microscopy[J]．Ultrasonics,2015,56：505-511. [9] 迟大钊,郭涛,张闰琦,等 ．声阻法胶接结构缺陷实时成像检测[J]．焊接学报,2022,43(11)：107-111,168-169. [10] LALANDE F,ROGERS C A,CHILDS B W,et alHigh-frequency impedance analysis for NDE of complex precision partsSmart Structures and Materials 1996：Smart Structures and Integrated SystemsSan Diego,CA,USAProc SPIE 27171996237243LALANDE F ,ROGERS C A ,CHILDS B W ,et al ．High-frequency impedance analysis for NDE of complex precision parts[C]//Smart Structures and Materials 1996：Smart Structures and Integrated Systems. San Diego,CA,USA,Proc SPIE 2717,1996：237-243. [11] 徐先纯,郝娟,郭灿志,等 ．多层黏接材料深层界面脱黏的超声谐振检测方法[J]．中国测试,2022,48(2)：14-20.
计量
- 文章访问数: 0
- HTML全文浏览量: 0
- PDF下载量: 0
