Real time computational algorithms for eddy-current-based damage detection

Abstract

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A MUSIC-type algorithm for detecting internal corrosion from electrostatic boundary measurements

“…Corrosion occurs in many different forms, and several mathematical models for electrostatic fields in the presence of corrosion have been studied in the literature (see, for example, Kaup and Santosa [16], Kaup et al [17], Vogelius and Xu [21], Inglese [12], Luong and Santosa [13], Banks et al [3] and references therein).…”

Structural Health Monitoring Sensor Placement Optimization Under Uncertainty

“…Damage detection and location identification algorithms include wavelet-based approaches 33 , two-stage modal frequency analysis 34 , and methods for eddy-current-based damage detection 35 . Property matrix updating, nonlinear response analysis, and damage detection using neural networks are all methods used to manipulate the information gathered by SHM systems for decision making.…”

Fused empirical mode decomposition and wavelets for locating combined damage in a truss-type structure through vibration analysis

“…Some of these procedures are: the acoustic emission (Li et al, 2011), infrared thermography (Shih et al, 2000), ultrasound (Voigt et al, 2003), image processing (Nishikawa et al, 2012), eddy currents (Banks et al, 2002), and radiographs (Vossoughi et al, 2007); which are all used in assessing structural damage. However, the aforementioned methods possess several disadvantages; for instance, it is required that the location of the damage be known a priori, the section of the structure under inspection needs to be easily accessible and in several cases, the structures must be closed temporarily during its inspection (Curadelli et al, 2008).…”