Elastodynamic inversion for shape reconstruction and type classification of flaws
作者： Michihiro Kitahara , Kazuyuki Nakahata , Sohichi Hirose
DOI: 10.1016/S0165-2125(02)00035-5
关键词:
摘要: Two linearized inverse scattering methods are investigated to reconstruct the shape of flaws in elastic solid. One is based on Born approximation and other Kirchhoff approximation. The inversion sensitive volumetric flaw but not a crack-like flaw. On hand, reacts both boundaries flaws. combined use inversions leads classification method type. performance proposed procedure demonstrated by numerical simulations then experimental measurements for two-dimensional models An example three-dimensional reconstruction also shown using numerically calculated backscattering amplitudes.
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