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- W4220876042 abstract "Among many damage imaging methods based on Lamb wave, phased array Delay and Sum (DAS) has attracted much attention because of its high efficiency. However, inherent dispersion effect leads to the inaccurate acquisition of time-domain features, which affects imaging accuracy. The imaging index based on the amplitude of scattering wave ignores the interaction between Lamb wave and damage, which is difficult to reflect the physical characteristics of damage scattering, and further affects imaging accuracy. We use the physical characteristic parameter-reflectivity of the damage surface as the imaging index and establish an inverse scattering model of damage in frequency domain with dispersion relationship. The simulation and experiment results show that the DAS method combined with the frequency-domain inverse scattering model can realise the high-quality imaging of the damage in the isotropic waveguide structure." @default.
- W4220876042 created "2022-04-03" @default.
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- W4220876042 creator A5080230045 @default.
- W4220876042 date "2022-03-14" @default.
- W4220876042 modified "2023-10-06" @default.
- W4220876042 title "Damage Imaging of Lamb Wave in Isotropic Plate Using Phased Array Delay and Sum Based on Frequency-domain Inverse Scattering Model" @default.
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- W4220876042 doi "https://doi.org/10.1080/10589759.2022.2045292" @default.
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