摘要: |
整体模压绝热结构是碳纤维缠绕壳体的重要抗冲刷、抗烧蚀和承压结构。采用空气耦合超声波对整体模压绝热结构进行了检测试验。试验结果显示,空气耦合超声波C扫描检测可有效检测出整体模压绝热结构内部Φ10mm及以上的分层、脱粘缺陷。使用的探头频率越高,检测灵敏度越高,缺陷边缘越清晰。 |
关键词: 整体模压绝热结构;空气耦合;超声波C扫描检测 |
基金项目: |
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Air-coupled Ultrasonic C-scan Testing of Whole Molded Insulation Structure |
Liu Kai1, Fang Wenbin2, Wang Xiaoyong1, Xia Meiling3
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1. Hubei Sanjiang Aerospace Jiangbei Machinery Engineering Co., Ltd.;2. First Military Representative of the Rocket Army Equipment Department in Xiaogan Area;3. Beijing Aerospace Special Testing & Research Co., Ltd.
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Abstract: |
As an important erosion resistant and pressure-bearing structure of carbon-fiber wound shell, whole molded insulation structure is widely used. The air-coupled ultrasonic testing experiments were carried out on whole molded insulation structure. The results show that the delamination and debonding defects of Φ10mm or more in the whole molded insulation structure can be detected by air-coupled ultrasonic C-scan testing, the higher the probe frequency, the higher the detection sensitivity and the clearer the defect edge. |
Key words: whole molded insulation structure;air-coupled ultrasonic;ultrasonic C-scan |