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A hybrid finite difference/helmholtz integral scheme for ultrasonic scattering (1990)

Firth, D. ; Gould, R. F.

Springer

Journal of nondestructive evaluation 9 (1990), S. 167-179

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ISSN: 1573-4862

Keywords: Finite difference ; Helmholtz integral ; diffraction coefficients ; crack tip geometry

Source: Springer Online Journal Archives 1860-2000

Topics: Electrical Engineering, Measurement and Control Technology , Mathematics

Notes: Abstract Two techniques for analyzing the scattering of elastic waves by flaws are combined in a hybrid model. One is a finite difference scheme for handling the details of the interaction with the flaw, the other is a Helmholtz integral scheme for extending the results into the far field. Results are given for the diffraction coefficients for a semi-infinite thin crack, and for a 270° corner.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1007/BF00566392

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