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Ultrasonic wave transmission in periodically undulated plates

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1 Author(s)
Hawwa, M.A. ; Dept. of Mech. Eng., King Fahd Univ. of Pet. & Miner., Dhahran, Saudi Arabia

This study focuses on quantifying the change in phase speed of waves transmitting through periodically undulated plates under pass band interaction. A perturbation technique is used to analyze the transmission of horizontally polarized guided waves in elastic plates with sinusoidal periodicity at their outerfaces. Phase speed of transmitting modes is presented as a function of various parameters, including outerface wavenumber, undulation amplitude, degree of undulations symmetry about the periodically undulated plate midplane, plate average thickness, arid frequency of propagation.

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Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on  (Volume:52 ,  Issue: 10 )