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This paper presents an experimental study on the interaction of ultrasonic guided waves with delamination in the web–flange interface of a co-cured, co-bonded composite T-joint. A complex interaction of waves is induced, first, by one, and, later, by two piezoceramic wafer(s) bonded on the inner surface of the flange. The flange surface velocity distributions are reconstructed from the scanning laser...
A new refined locking free first-order shear deformable finite element is presented, and its utility in solving free vibration and wave propagation problems in laminated composite beam structures with symmetric as well as asymmetric ply stacking is demonstrated. The paper also illustrates the application of the element to handle different types of structural discontinuities such as ply-drops, multiply...
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