Scattering of Lamb Waves From Typical Structure Defects in Plates Essay

Scattering of Lamb Waves From Typical Structure Defects in Plates - Essay Example ure defects using piezoelectric transducer (PZT) sensors and 3-D Scanning Laser vibrometry and simulation the results by using Autodyne ANSYS is an important wildly recognized non-destructive evaluation SHM technique to locate, identify and quantify the structural damage and hence we can improve the survivability of mechanical structure. 1- The project work will be carried out first by reviewing the various research works and techniques involved in SHM including project related above mentioned non-destructive evaluation SHM technique with Autodyn ANSYS as simulation tool. The information obtained through literature review will further be used for practical work to study and investigate the various aspects of practical applications. 2- Since the practical work involved the application of 3D laser vibrometer in conjunction with Lamb wave technique to locate, identify and quantify typical structural damage like any crack, corrosion and dent, hence as next step I have to prepare test specimens. The test specimen can be a single aluminium plate having all three structural damages or three separate aluminium plates with different structural damage. For my experiment for the worse case situation, I have to prepare a single aluminium plate of 800 X 200 X 20 mm dimensions with all three defects i.e. crack, corrosion and dents as shown in following figure 1, 2 and 3 below. 3- My next step will be to fabricate the sensing devices to the specimen. Since I am using piezoelectric transducer (PZT) as sensors to Lamb wave through 3-D laser scanning hence I fabricate PZT to target