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Ultrasonic Fields and Inspection of Huge Complex Composites

C. XU, H. WANG, J. D. ACHENBACH, X. ZHAO

Abstract


Reliability and effectiveness of widely used composites results in a significant demand for ultrasonic nondestructive testing. In this paper, an ultrasonic field calculating model is described for composite material. Focal distance, beam spread of transmitted ultrasonic field can be obtained by measuring transmitted ultrasonic filed. In order to guarantee more ultrasonic signals transmitted through composites, the sound axis of transducer should always keep consistence in normal plane of curved surface. A twin-robot testing system is set up to inspect the complex surface automatically by ultrasonic transmitted way. The experimental results above is effective and feasible for nondestructively ultrasonic testing huge complex composites.

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