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GUIDED WAVE IN ULTRA-THIN LAYERED COMPOSITE STRUCTURE WITH WEAK AND SLIP INTERFA CE IN DIFFERENT DEPTH
- Source :
- Acta Physica Sinica. 49:1297
- Publication Year :
- 2000
- Publisher :
- Acta Physica Sinica, Chinese Physical Society and Institute of Physics, Chinese Academy of Sciences, 2000.
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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 equ ations for low-order mode guided waves in ultra-thin layered composites structur e 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 wavelength so that the echoes from the fro nt and the back of the surface cannot be separated in the time domain.
Details
- ISSN :
- 10003290
- Volume :
- 49
- Database :
- OpenAIRE
- Journal :
- Acta Physica Sinica
- Accession number :
- edsair.doi...........5acb6e42c18a648e478ba784651603ca