Results 101 to 110 of about 11,411 (229)
SensorsUltrasonic guided waves, which are often generated and detected by piezoelectric transducers, are well established to monitor engineering structures. Wireless solutions are sought to eliminate cumbersome wire installation. This work proposes a method for
Marilyne Philibert, Kui Yao
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Scanning laser techniques for characterisation of different surface breaking defect geometries [PDF]
, 2012 Measurements using a laser scanning system consisting of a pulsed Nd:YAG laser to generate surface ultrasonic waves and an interferometer to detect the surface displacement, are presented for different samples and defect geometries.
Clough, A. R. +4 more
core
Sparse-TFM Imaging of Lamb Waves for the Near-Distance Defects in Plate-Like Structures
Metals, 2019 The ultrasonic phased array total focusing method (TFM) has the advantages of high imaging resolution and high sensitivity to small defects. However, it has a long imaging time and cannot realize near-distance defect imaging, which limits its application
Haiyan Zhang +5 more
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Non-contact ultrasonic stress measurement using lamb waves
NDT & E InternationalAbstract: Stress measurement is essential in many applications such as aerospace or construction, and ultrasonic stress measurement systems are removable and non-destructive. Using air-coupled ultrasound has the advantage of being non-contact. In other works, an air-coupled ultrasonic phased array is used to adjust the coupling angle and then measure ...
Christoph Haugwitz +10 more
openaire +2 more sources
Numerical evaluation of deformation and fracture processes of AA7068 specimens using Lamb waves [PDF]
, 2016 The Lamb wave technique for quantitative analysis of deformation and fracture processes of aluminum alloy specimens has been investigated. In order to study the evolution of propagation of ultrasonic elastic waves throughout static and fatigue mechanical
Бурков, Михаил Владимирович +2 more
core
Abstracts of the 18th SCWD Conference, 11‐13 December 2025 in Rome/Italy
JCSM Communications, Volume 9, Issue 1, January/June 2026.
wiley +1 more source
Material Characterization of Fiber-Reinforced Composites Using Air Coupled Ultrasonic Polar Scans
Research and Review Journal of Nondestructive TestingThe widespread use of fiber-reinforced composites is partly due to their high weight-specific mechanical properties. Due to their complex structure, however, there are high demands on quality assurance.
Julian Würthner, Marc Kreutzbruck
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