随着复合材料结构及其制件在航空航天领域中的广泛应用, 对复合材料的无损检测技术也提出了更高的要求。通过制作埋有不同大小人工缺陷的碳纤维增强树脂基复合材料的胶接结构、层压结构和蜂窝夹层结构试块, 并对这些试块进行超声检测试验, 分析了如何设置超声检测参数才能有效检出预埋缺陷的方法。结果表明: 选取合适的检测设备和检测参数, 能够全部检出人工预埋缺陷, 验证了超声方法对碳纤维复合材料结构检测的有效性。

With the composite structure and its parts being widely used in aerospace, higher requirement for the nondestructive testing technology has been put forward. Different sizes of artificial defects were buried in glued buried structure,laminated structure, and honeycomb sandwich structure in the carbon fiber reinforced resin matrix composite material test blocks, and these test blocks were tested with ultrasonic and the way how to set the parameters to detect embedded defect effectively was discussed. The results showed that through properly selecting the appropriate detection equipment and testing parameters, all the embedded artificial defects could all be detected.