Improved impact-echo approach for non-destructive testing and evaluation

This study examines rationale of correction factor β in the formula of thickness resonant frequency, fundamental to the impact-echo (IE) approach in non-destructive testing and evaluation for integrity appraisal and damage diagnosis of infrastructure systems. It shows the role of the factor in the resonant frequency which is typically obtained with average characteristic from traditional fast Fourier transform or FFT data analysis of IE recordings. A time-frequency data analysis termed Hilbert-Huang Transform or HHT is then introduced to overcome the shortage of FFT analysis in identifying the resonant frequency from IE recordings. With the FFT and HHT analyses of five data sets of sample IE recordings from sound and damaged concrete structures and comparison with referenced ones, this study reveals that the proposed IE approach with HHT data analysis not only eliminates the use of correction factor in the formula, it also improves greatly the accuracy in the IE approach.

[1]  Ray Ruichong Zhang.  A Recording-Based Approach for Identifying Seismic Site Liquefaction and Nonlinearity via HHT Data Analysis , 2009, Adv. Data Sci. Adapt. Anal..

[2]  Christopher L. Barnes,et al.  Hybrid analysis of surface wavefield data from Portland cement and asphalt concrete plates , 2009 .

[3]  Masayasu Ohtsu,et al.  Dynamic Boundary Element Method Analysis for Determining Correction Factor in Impact Echo , 2008 .

[4]  Robert H. King,et al.  Dynamic response of the Trinity River Relief Bridge to controlled pile damage: modeling and experimental data analysis comparing Fourier and Hilbert–Huang techniques , 2005 .

[5]  Norden E. Huang,et al.  A review on Hilbert‐Huang transform: Method and its applications to geophysical studies , 2008 .

[7]  Gabriel Rilling,et al.  EMD Equivalent Filter Banks, from Interpretation to Applications , 2005 .

[8]  Nii O. Attoh-Okine,et al.  The Empirical Mode Decomposition and the Hilbert-Huang Transform , 2008, EURASIP J. Adv. Signal Process..

[9]  Ray Ruichong Zhang,et al.  Characterizing and quantifying earthquake-induced site nonlinearity , 2006 .

[10]  N. Huang,et al.  The empirical mode decomposition and the Hilbert spectrum for nonlinear and non-stationary time series analysis , 1998, Proceedings of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences.

[11]  Shuo Ma,et al.  Hilbert-Huang transform analysis of dynamic and earthquake motion recordings , 2003 .

[12]  Mary Sansalone,et al.  Impact-echo : nondestructive evaluation of concrete and masonry , 1997 .

[13]  Norden E. Huang,et al.  Ensemble Empirical Mode Decomposition: a Noise-Assisted Data Analysis Method , 2009, Adv. Data Sci. Adapt. Anal..

[14]  Ray Ruichong Zhang.  A simple approach for quality evaluation of non-slender, cast-in-place piles , 2008 .

[15]  Ray Ruichong Zhang,et al.  Dynamic Bridge Substructure Condition Assessment with Hilbert-Huang Transform: Simulated Flood and Earthquake Damage to Monitor Structural Health and Security , 2004 .