Journal ArticleDOI
Nonlinear self-modulation and subharmonic acoustic spectroscopy for damage detection and location
TLDR
In this article, a self-modulation mode of nonlinear acoustic vibrations of cracked defects has been analyzed and observed experimentally and attributed to the sum-frequency type resonance in a multi-degree of freedom system and include a subharmonic spectrum as a particular case.Abstract:
A self-modulation mode of nonlinear acoustic vibrations of cracked defects has been analyzed and observed experimentally. Spectral patterns of the self-modulation are attributed to the sum-frequency type resonance in a multi-degree-of-freedom system and include a subharmonic spectrum as a particular case. Both the subharmonic and self-modulation modes demonstrate a high localization around the defect and provide opportunities for early detection and recognition of damaged areas.read more
Citations
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Dissertation
Contributions au contrôle non destructif des composites carbones
TL;DR: In this paper, two parties were organized for the detection of defaut dans les composites alveolaires par methode multiphysique couplant and a hydraulique non lineaire.
Journal ArticleDOI
Non-linear absorption of an intense laser pulse propagating in wiggler-assisted underdense collisional plasma
Mehdi Abedi-Varaki,Nasser Panahi +1 more
Journal ArticleDOI
Spectral finite element method for efficient simulation of nonlinear interactions between Lamb waves and breathing cracks within the bi-potential framework
TL;DR: In this paper, a time domain spectral finite element method (TDSFEM) combined with the bi-potential contact theory is developed to capture the nonlinear interactions between guided waves and breathing cracks.
Book ChapterDOI
Modeling and Numerical Simulations in Nonlinear Acoustics Used for Damage Detection
TL;DR: Structural damage detection is frequently accomplished by interrogation with elastic waves in order to assess the severity of structural damage.
Journal ArticleDOI
Continuous waves probing in dynamic acoustoelastic testing
TL;DR: In this article, the authors propose an implementation of the approach, in which the pulse probing waves are substituted by continuous waves, and instead of measuring a time-of-flight as a function of the pump strain, they study the dependence of the resonance frequency on the strain amplitude, allowing to derive the same conclusions but with an easier implement procedure.
References
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BookDOI
Review of Progress in Quantitative Nondestructive Evaluation
TL;DR: The Review of Progress in Quantitative NDE (ROPQN) as mentioned in this paper is the world's leading conference in reporting annually new research and development results in quantitative NDE and promotes communication between the research and engineering communities and emphasize current reporting of work in progress.
Journal ArticleDOI
Ultrasonics of non-linear contacts: propagation, reflection and NDE-applications
TL;DR: The results of experimental investigation of acoustic non-linear phenomena on contact boundaries are presented in this article, where simulation experiments demonstrated a threshold nonlinear distortion due to "clapping" and "kissing" mechanisms, multiple bifurcations and chaos development for contact vibrations.
Journal ArticleDOI
Instability, chaos, and "memory" in acoustic-wave-crack interaction.
Igor Yu. Solodov,B. A. Korshak +1 more
TL;DR: A new class of nonlinear acoustic phenomena has been observed for acoustic wave interactions with cracked defects in solids, and acoustic-wave impact on a crack is shown to exhibit amplitude hysteresis and storage for parametric and non linear acoustic effects.
Journal ArticleDOI
Sensitive imaging of an elastic nonlinear wave-scattering source in a solid
TL;DR: In this paper, the nonlinear response of a solid by modulation of a high by a low-frequency wave, and employing moving-window, synchronous detection is used to locate isolated nonlinear scattering source(s) in solids.
Journal ArticleDOI
Self-induced hysteresis for nonlinear acoustic waves in cracked material.
TL;DR: The proposed theoretical models attribute the phenomenon to hysteresis in transition of the acoustically forced oscillation of cracks from a nonclapping regime to a regime of clapping contacts.