Detecting and Locating Curved Cracks in Thin Plates by Lamb Wave Reflection: Validated Geometric Approach
نویسندگان
چکیده
The practical problem. In many practical situations, it is extremely important to be able to detect hidden cracks (and other possible faults) in aerospace and other structures. One way of testing the structural integrity of such structures is by using ultrasonic waves. For thin plates, Lamb waves (which direct the energy along the plate) are especially useful. To use these waves, we set up a transmitter T and (one or several) receivers R, and try to extract, from the signals measured by the receivers, the information about the possible cracks and other faults. This extraction is not easy.
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