Determination of crack characteristics from the quasistatic approximation for the scattering of elastic waves
- 1 December 1978
- journal article
- conference paper
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 49 (12) , 5763-5767
- https://doi.org/10.1063/1.324579
Abstract
We extend the work of a previous paper to give a long-wavelength approximation for elastic wave scattering by an elliptical flat crack. Explicit formulas for the far-field scattered amplitudes in this approximation are given for various experimental configurations. These formulas are then applied to give a simple inversion procedure. The orientation and eccentricity of the crack are readily determined from unnormalized scattering data. The size may be determined from an absolute intensity measurement.This publication has 3 references indexed in Scilit:
- Quasistatic approximation to the scattering of elastic waves by a circular crackJournal of Applied Physics, 1978
- Formal aspects of the theory of the scattering of ultrasound by flaws in elastic materialsJournal of Applied Physics, 1977
- The determination of the elastic field of an ellipsoidal inclusion, and related problemsProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1957