首页> 外文会议>International Ultrasonics Symposium >Visualization of Lamb Wave Propagation in Uncured CFRP and Curved Surfaces Using Air-Coupled Ultrasound.
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Visualization of Lamb Wave Propagation in Uncured CFRP and Curved Surfaces Using Air-Coupled Ultrasound.

机译:使用空气耦合超声波在未固化的CFRP和弯曲表面中可视化LAMB波传播。

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Propagation of Lamb waves, generated and detected using air-coupled piezoelectric transducers (0.1-1.0 MHz), is visualized. Hence phase and group velocities are obtained. The technique is first tested on plates (aluminum and carbon fiber reinforced polymers -CFRP- plates). Then it has been applied to un-cured CFRPs plates and curved surfaces: steel pipes and vessels and to the curved section of CFRP beams. Two different experimental set-ups are proposed: 1) use of monolithic transducers and mechanical scans along the direction of propagation, 2) use of a phased array linear transducer and an electronic scan along the direction of propagation.
机译:使用空气耦合压电换能器(0.1-1.0MHz)产生和检测λ波的传播,可视化。因此获得相位和群速度。首先在平板上测试该技术(铝和碳纤维增强聚合物-CFRP板)。然后已经应用于未固化的CFRPS板和弯曲表面:钢管和容器以及CFRP梁的弯曲部分。提出了两种不同的实验组:1)使用单片换能器和机械扫描沿着传播方向,2)沿着传播方向使用相位阵列线性换能器和电子扫描。

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