Abstract
In conjunction with the transfer matrix techniques for modeling ultrasonic wave in multilayered composite medium, the spring model for a weak interface and the interface condition of the slip interface, we have the generalized frequency equations for low-order mode guided waves in ultra-thin layered composites structure with a weak or slip interface in different depth, and the effect of the depth of the interface on the dispersion properties of low-order mode ultrasonic Lamb wave are analyzed. The "ultra-thin" here means that the thickness of the plate is only a fraction of the ultrasound wave-length so that the echoes from the front and the back of the surface cannot be separated in the time domain.
Original language | English (US) |
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Pages (from-to) | 1301-1302 |
Number of pages | 2 |
Journal | Wuli Xuebao/Acta Physica Sinica |
Volume | 49 |
Issue number | 7 |
State | Published - Jul 2000 |
All Science Journal Classification (ASJC) codes
- General Physics and Astronomy