Analytical Solution of Lamb Wave Scattering at Plate End

Abstract:

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An analytical solution based on modal decomposition is presented to investigate Lamb wave scattering at plate end. Take boundary condition into biorthogonality relation, a matrix equation is established with all matrix elements have analytical expressions. The scattering feature is then expressed in matrix form, named as reflection matrix, which has explicit expression composed of those matrixes. Calculation examples have be implemented when antisymmetric modes are reflected. Scattering coefficients are figured out in a range when frequency-thickness product vary from 0 to 8kHzm, to prove the calculation efficiency. The calculation precision is very close to the least square method based on model discretization.

Info:

Periodical:

Advanced Materials Research (Volumes 199-200)

Edited by:

Jianmin Zeng, Zhengyi Jiang, Taosen Li, Daoguo Yang and Yun-Hae Kim

Pages:

949-952

DOI:

10.4028/www.scientific.net/AMR.199-200.949

Citation:

F. L. Feng et al., "Analytical Solution of Lamb Wave Scattering at Plate End", Advanced Materials Research, Vols. 199-200, pp. 949-952, 2011

Online since:

February 2011

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Price:

$35.00

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