Effect of central and non-central frequency components on the quality of damage imaging

Abstract

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Second Harmonic Generation of Guided Wave at Crack-Induced Debonding in FRP-Strengthened Metallic Plates

“…In general, the studies focused on understanding the physical insights into the guided wave interaction with different types of damages, e.g. thickness reduction 13,14 , crack 15,16 , delamination [17][18][19] and debonding [20][21][22] , and developing guided wave based damage detection techniques using time-of-flight information of the waves 23,24 , maximum-likelihood estimation 25 , imaging approach [26][27][28] , phase-array approach 29,30 , model-based approach 31 and time-reversal approach 32,33 etc.…”

Debonding detection in CFRP-retrofitted reinforced concrete structures using nonlinear Rayleigh wave

“…Lamb wave refers to guided wave propagates in plates with wavelength larger or of the order of the plate thickness [8]- [11]. In the last two decades, Lamb wave has been widely used for damage detection of plate-like structures [12]- [15]. When the wavelength of the guided wave is much smaller than the thickness of the structures, e.g.…”