作者：凡丽梅¹, 董方旭¹, 安志武², 王从科¹, 赵付宝¹, 汤振鹤¹

作者单位：1. 中国兵器工业集团第五三研究所，山东 济南 250031;
2. 中国科学院声学研究所，北京 100190

关键词：粘接构件;非线性超声检测;基波;二次谐波;非线性系数

摘要：

为提高橡胶/铝合金粘接构件粘接界面缺陷检测结果的可靠性，解决缺陷定量化表征问题，该文采用非线性超声检测技术对含模拟脱粘缺陷试样进行研究，建立非线性弹簧模型，通过采集模拟脱粘缺陷试样上缺陷处的基波信号和二次谐波信号，获得缺陷非线性系数β值，建立缺陷面积与非线性系数β值关系拟合曲线。对比自然试样中缺陷的非线性超声检测和超声C扫描检测结果，验证非线性超声检测结果可靠，因此非线性超声检测技术是评价橡胶/铝合金粘接构件粘接界面粘接质量的一种可靠方法。

Study on nonlinear ultrasonic detection technology of debonding defects for rubber/aluminum alloy bond component
FAN Limei¹, DONG Fangxu¹, AN Zhiwu², WANG Congke¹, ZHAO Fubao¹, TANG Zhenhe¹
1. CNGC Institute 53, Jinan 250031, China;
2. Institute of Acoustics, Chinese Academy of Sciences, Beijing 100190, China
Abstract: In order to improve the reliability of defect detection result for rubber/aluminum alloy bond component and solve the quantitative characterization problem of defects. Nonlinear ultrasonic detection technology is used to inspect simulation debonding defects samples, the nonlinear spring model has been theoretically established, the nonlinear coefficient β was acquired through collecting fundamental signals and second harmonic signals of simulation debonding defects sample, the fitting curve between defect area and nonlinearity coefficient β was established. The result of nonlinear ultrasonic detection and ultrasonic C-scan test was compared, which verified the reliability of nonlinear ultrasonic detection result, Therefore nonlinear ultrasonic detection technology is a reliable method to evaluate the bonding quality of rubber/aluminum alloy bond component.
Keywords: bond component;nonlinear ultrasonic detection;fundamental echo;second harmonic;nonlinear coefficient
2020, 46(8):15-21,43  收稿日期: 2019-09-02;收到修改稿日期: 2019-10-21
基金项目:
作者简介: 凡丽梅(1983-)，女，山东济南市人，副研究员，硕士，主要从事复合材料方面超声检测研究
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