Some general results are presented concerning the scattering of flexural waves from regions of inhomogeneity on flat plates. We derive a flux conservation relation for arbitrary motion, and show that it simplifies for periodic motion. An optical theorem is obtained relating the total scattered flux
Flexural wave propagation and scattering on thin plates using Mindlin theory
โ Scribed by C. Vemula; A.N. Norris
- Publisher
- Elsevier Science
- Year
- 1997
- Tongue
- English
- Weight
- 843 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0165-2125
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โฆ Synopsis
The theory of scattering for flexural waves is developed for an elastic heterogeneity in a flat thin plate in the context of Mindlin's theory. Some new results are derived for energy flux and contrasted with the equivalent results in Kirchhoff plate theory. Numerical examples are presented for scattering of flexural waves from circular regions of inhomogeneity with different plate properties and are compared with similar results using the Kirchhoff plate theory.
๐ SIMILAR VOLUMES
The scattering of flexural wave by multiple circular holes in an infinite thin plate is analytically solved by using the multipole Trefftz method. The dynamic moment concentration factor (DMCF) along the edge of circular holes is determined. Based on the addition theorem, the solution of the field r