Nonlinear ultrasonic guided waves—Principles for nondestructive evaluation
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TLDR
This Tutorial focuses on the physical principles of nonlinear ultrasonic guided waves leading to the so-called internal resonance conditions that provide a means for selecting primary waves that generate cumulative secondary waves that transform how the service lives of structural systems are managed.Abstract:
Research into the use of nonlinear ultrasonic guided waves for nondestructive evaluation is expanding at a high rate because of the great potential benefit that they possess for early detection of material degradation. However, development of inspection and testing strategies is complicated because (i) the underlying physical principles are complex, (ii) there is a broad spectrum of possible solutions but only a limited number that have been shown to be effective, and (iii) the nonlinearity is weak and thus its measurement is challenging. This Tutorial aims to provide a foundation for researchers and technology-transitioners alike, to advance the application of nonlinear ultrasonic guided waves and ultimately transform how the service lives of structural systems are managed. The Tutorial focuses on the physical principles of nonlinear ultrasonic guided waves leading to the so-called internal resonance conditions that provide a means for selecting primary waves that generate cumulative secondary waves. To detect material degradation, we are primarily interested in nonlinearity stemming from the material itself, which is represented as hyperelastic. For the special case of plates, internal resonance points have been identified and case studies are presented to illustrate some of the applications. The Tutorial has one new result not published in a research paper; finite element simulation of energy transfer from shear-horizontal primary waves to symmetric Lamb waves at the second harmonic.read more
Citations
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Journal ArticleDOI
Nonlinear Guided-Wave Mixing for Condition Monitoring of Bolted Joints
TL;DR: In this article, the authors present a theoretical development and experimental investigation into nonlinear guided-wave mixing for integrity monitoring of bolted joints in plates, and the results show that the combinational harmonics remain robust for different numbers of cycles in detecting bolt loosening.
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Low-frequency Lamb wave mixing for fatigue damage evaluation using phase-reversal approach.
TL;DR: In this article , a series of parametric case studies are carried out using the three-dimensional finite element (FE) method to investigate the effects of the excitation frequencies and time delay of the incident waves in wave mixing on the transient response of a weakly-nonlinear material.
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Two-dimensional scattering features of the mixed second harmonic A0 mode Lamb waves for incipient damage localization
TL;DR: In this paper , a two-dimensional incipient damage localization method is proposed based on the newly discovered wave phenomenon, where damage-induced nonlinear wave scattering features are first investigated.
Journal ArticleDOI
Two-dimensional scattering features of the mixed second harmonic A0 mode Lamb waves for incipient damage localization.
TL;DR: In this paper, a two-dimensional incipient damage localization method is proposed based on the newly discovered wave phenomenon, where damage-induced nonlinear wave scattering features are first investigated.
Journal ArticleDOI
Metamaterial-enhanced coda wave interferometry with customized artificial frequency-space boundaries for the detection of weak structural damage
TL;DR: In this paper , a meta-device design was proposed to enhance the performance of the coda wave interferometry (CWI), which generates artificial frequency-space boundaries, which allow for an effective manipulation and customization of wave propagation in a selective manner in terms of both frequency content and inspection area.
References
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The empirical mode decomposition and the Hilbert spectrum for nonlinear and non-stationary time series analysis
Norden E. Huang,Zheng Shen,Steven R. Long,Man-Li C. Wu,Hsing H. Shih,Quanan Zheng,Nai-Chyuan Yen,C. C. Tung,Henry H. Liu +8 more
TL;DR: In this paper, a new method for analysing nonlinear and nonstationary data has been developed, which is the key part of the method is the empirical mode decomposition method with which any complicated data set can be decoded.
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A review on empirical mode decomposition in fault diagnosis of rotating machinery
TL;DR: This paper attempts to survey and summarize the recent research and development of EMD in fault diagnosis of rotating machinery, providing comprehensive references for researchers concerning with this topic and helping them identify further research topics.
Book
Ultrasonic Guided Waves in Solid Media
TL;DR: The semi-analytical finite element method (SAFE) has been used for guided wave modeling as discussed by the authors, which has been shown to be useful in the analysis and display of non-destructive testing.
Journal ArticleDOI
Nonlinear ultrasonic techniques for nondestructive assessment of micro damage in material: A review
TL;DR: In this paper, the authors reviewed the overall progress in nonlinear ultrasonic technique with the brief introduction of basic principle in the application of each nonlinear Ultrasonic phenomenon, including higher harmonic generation, subharmonic generation, nonlinear resonance, or mixed frequency response.
Journal ArticleDOI
Fatigue damage assessment by nonlinear ultrasonic materials characterization
TL;DR: In this article, the second-order acousto-elastic coefficient (SOC) was measured in a variety of materials including plastics, metals, composites and adhesives.