复合材料构件R区的超声相控阵检测实验

Ultrasonic phased array inspection for the corner of composite components

针对复合材料构件R区的超声检测问题,开展超声相控阵检测实验研究.分析R区的检测难点,利用超声相控阵检测技术的优势,分别提出了基于相控阵弧阵换能器和线阵换能器的两种检测方法;对复合材料L型试样的R区进行超声相控阵检测实验,验证了两种检测方法的正确性;并与常规超声检测方法进行对比,分析了超声相控阵技术检测R区的技术优势.研究结果表明:超声相控阵检测技术具有适用性强、检测效率高等优势,可以满足复合材料构件R区的检测要求.

Ultrasonic phased array inspection for the corner of composite components was researched on experiment. The difficulties of the corner inspection and advantages of ultrasonic phased array inspection tech- nique were dealt with. Then two kinds of inspection methods with curved array transducer and linear array transducer were put forward. The experiments of the corner inspection of L-shaped composite component were conducted with the two methods, which verified the correctness of the two kinds of methods. Finally, the two inspection methods and conventional ultrasonic inspection method were contrasted and the advantages of the corner inspection using ultrasonic phased array technique were summarized. The results show that ultrasonic phased array technique is a feasible, efficient detection method, which can satisfy the inspection requirement of the corner of composite components.