Conveners
A13.01 Guided waves for NDT & SHM applications: P501
- Lynda CHEHAMI (UPHF)
- Markus Saurer (University of Graz)
- Theodosia Stratoudaki (University of Strathclyde)
- Robert Nuster (University of Graz)
A13.01 Guided waves for NDT & SHM applications: S090
- Markus Saurer (University of Graz)
- Lynda CHEHAMI (UPHF)
- Theodosia Stratoudaki (University of Strathclyde)
A13.01 Guided waves for NDT & SHM applications: S355
- Theodosia Stratoudaki (University of Strathclyde)
- Markus Saurer (University of Graz)
- Robert Nuster (University of Graz)
- Lynda CHEHAMI (UPHF)
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Robert Nuster (University of Graz)10/09/2026, 09:00A13 Physical Acoustics and Ultrasound
Residual stresses strongly influence the mechanical performance of metallic components and require reliable non-destructive characterization techniques. In this work, modal vibrations of cuboidal aluminum and copper samples with and without residual stresses are investigated using Laser Ultrasound (LUS) and compared to finite element simulations in Ansys Mechanical. LUS provides contact-free...
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Esma Tuzovic (George W. Woodruff School of Mechanical Engineering)10/09/2026, 14:20A13 Physical Acoustics and Ultrasound
Agra marble inlay work (also known as Parchin Kari, Pacchikari or Pietra Dura) is a traditional craftsmanship wherein carefully shaped hard stones are inserted into an engraved marble matrix, with the Taj Mahal being the best-known example. In spite of its historical importance and popular application to modern items, inlayed objects present significant challenges for material classification...
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Aziz BOUZZIT (SATIE Lab - CYU)10/09/2026, 14:40A13 Physical Acoustics and Ultrasound
Viscoelastic materials are widely used in industrial structures, cultural heritage objects, and biomedical applications. Monitoring their mechanical properties is essential, as these properties may evolve due to mechanical loading, aging, or environmental variations such as humidity and temperature fluctuations. Such changes can indicate potential degradation or loss of structural...
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Daniel A. Kiefer (Institut Langevin, ESPCI Paris, Universitรฉ PSL, CNRS)10/09/2026, 15:00A13 Physical Acoustics and Ultrasound
Elastic waves in plates are commonly classified by their polarization. Shear-horizontal (SH) waves exhibit in-plane displacement orthogonal to the wave vector, whereas Lamb waves involve the remaining two displacement components. In isotropic plates, these polarizations are fully decoupled, and Lamb waves alone suffice to characterize the material completely. This contribution examines how far...
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Hilde Metzger (University of Strathclyde)10/09/2026, 15:20A13 Physical Acoustics and Ultrasound
This paper explores how a spatial light modulator (SLM) can improve 3D imaging using laser induced phased arrays (LIPA), by reducing data acquisition time, increasing efficiency and adding flexibility to the existing LIPA platforms.2D LIPAs have enabled remote, couplant-free volumetric imaging for non-destructive evaluation (NDE) [1]. Current LIPA platforms, that scan a single point-focused...
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Kim Ming NG (SATIE Lab - CYU)10/09/2026, 15:40A13 Physical Acoustics and Ultrasound
Electricity transmission towers situated in open environments are continuously exposed to atmospheric and industrial impacts. Corrosion occurs inevitably under the impacts of these external factors. This study discusses the methodology of detecting and quantifying the internal defect created by corrosion using ultrasonic wave technique. Experimental sample was part of an onsite tower and made...
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Aziz BOUZZIT (SATIE Lab - CYU)10/09/2026, 16:20A13 Physical Acoustics and Ultrasound
This study presents a combined numerical and experimental investigation of nonlinear guided waves generation and propagation in weakly nonlinear isotropic elastic plates, with particular emphasis on their interaction with a crack-type defect. The analysis focuses on the second harmonic guided wave (SHGW) generated from the fundamental symmetric mode in an aluminium plate. Numerical simulations...
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Lynda CHEHAMI (UPHF)10/09/2026, 16:40A13 Physical Acoustics and Ultrasound
Acoustic wave propagation in low-attenuation bounded media produces long-lasting reverberation signals. Traditional non-destructive testing and imaging methods typically rely only on the first-arrivingwave packets, overlooking possible information contained in the later reverberating part (the codas).In this work, these codas are processed in order to compute the scattering cross section of a...
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Christoph del Castillo Albildo (University of Siegen)10/09/2026, 17:00A13 Physical Acoustics and Ultrasound
The detection of localized material nonlinearities using guided waves is a valuable approach for nondestructive characterization and damage detection due to their ability to propagate over long distances and interrogate inaccessible domains. Of particular interest is the so-called wave mixing, in which the mutual interaction of two primary waves generates a secondary wave field. Phased-array...
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Jakub Kuลกnรญr (Institute of Thermomechanics of the Czech Academy of Sciences)10/09/2026, 17:20A13 Physical Acoustics and Ultrasound
The influence of spot size on the quality of the time- and frequency-domain results of transient grating spectroscopy (TGS) was investigated. The experiment was performed on a single-crystalline sample of Ni with a highly symmetrical cut (110). Sharpening of the frequency peaks of the SAW was observed for larger spot sizes. However, the best obtainable sharpness of the frequency peaks strongly...
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Markus Saurer (University of Graz)10/09/2026, 17:40A13 Physical Acoustics and Ultrasound
The advent of novel technologies capable of producing small samples with complex shapes, such as additive manufacturing and 3D printing, has given rise to new challenges for defect detection and visualization techniques, including laser ultrasound imaging. When the ultrasound wavelength is comparable to the sample dimensions, multiple reflections can dominate the wave field, resulting in...
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Mriganka Shekhar Chaki (University of Sheffield)10/09/2026, 18:00A13 Physical Acoustics and Ultrasound
Underground buried pipeline networks play a vital role in sustaining modern urban life by enabling the transportation of essential fluids such as water, oil, and gas. In the UK alone, there are over 300,000 km of clean water mains. However, water leakage in buried pipeline networks is a major challenge due to limited data available on the structural condition and ageing. Much of this loss...
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