Nonlinear Ultrasonic Imaging for Porosity Evaluation. [PDF]
Sensors (Basel), 2023 The influence of porosity on the mechanical behaviour of composite laminates represents a complex problem that involves many variables. Therefore, the evaluation of the type and volume content of porosity in a composite specimen is important for quality control and for predicting material behaviour during service.
De Simone ME +3 more
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Temperature Effects on Nonlinear Ultrasonic Guided Waves. [PDF]
Materials (Basel), 2023 Nonlinear ultrasonic guided waves have attracted increasing attention in the field of structural health monitoring due to their high sensitivity and long detection distance. In practical applications, the temperature of the tested structure will inevitably change, so it is essential to evaluate the effects of temperature on nonlinear ultrasonic guided ...
Niu X, Zhu L, Yang W, Yu Z, Shen H.
europepmc +3 more sources
Energy Transfer Efficiency Based Nonlinear Ultrasonic Testing Technique for Debonding Defects of Aluminum Alloy Foam Sandwich Panels [PDF]
Sensors, 2023 In order to improve the accuracy of detection results of debonding defects of aluminum alloy thin plate, the nonlinear ultrasonic technology is used to detect the simulated defect samples, aiming at problems such as near surface blind region caused by ...
Jun Tu +4 more
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Debonding Detection in Hidden Frame Supported Glass Curtain Walls Using the Nonlinear Ultrasonic Modulation Method with Piezoceramic Transducers [PDF]
Sensors, 2018 Debonding defects are common and they are the main reason for the failure of hidden frame supported glass curtain walls, which are widely used as an external enclosure and decorative structure. In this paper, a debonding detection method for hidden frame
Xiaobin Hong +3 more
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Preliminary Research on the Nonlinear Ultrasonic Detection of the Porosity of Porous Material Based on Dynamic Wavelet Fingerprint Technology [PDF]
Sensors, 2019 Porosity is an important characteristic of porous material, which affects mechanical and material properties. In order to solve the problem that the large distribution range of pore size of porous materials leads to the large detection errors of porosity,
Xianghong Wang +3 more
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Multi-Harmonic Nonlinear Ultrasonic Fusion with Deep Learning for Subtle Parameter Identification of Micro-Crack Groups [PDF]
SensorsFatigue crack defects in metallic materials significantly reduce the remaining useful life (RUL) of parts. However, much of the existing research has focused on identifying single-millimeter-scale cracks using individual nonlinear ultrasonic responses ...
Qi Lin +8 more
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Study on the nonlinear characteristic of a longitudinal piezoelectric ultrasound transducer with stepped horn [PDF]
Ultrasonics SonochemistryLongitudinal vibration sandwich piezoelectric transducers with a stepped horn are widely used in high-intensity ultrasonic applications such as ultrasonic welding, ultrasonic machining, and ultrasonic cleaning. In these applications, due to the increased
Zhongji Yang +5 more
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Research Progress in Nonlinear Ultrasonic Testing for Early Damage in Metal Materials. [PDF]
Materials (Basel), 2023 Yan X, Wang H, Fan X.
europepmc +2 more sources
Mechanical structural health prognosis with nonlinear mixed frequency ultrasonic signal analysis [PDF]
E3S Web of Conferences, 2021 In order to detect the early fatigue crack of mechanical components simply, this paper puts forward the ultrasonic testing technology of different side collinear mixing.
Chen Hanxin +4 more
doaj +1 more source
Fatigue Damage Evaluation of Compressor Blade Based on Nonlinear Ultrasonic Nondestructive Testing
Journal of Marine Science and Engineering, 2021 Nonlinear ultrasonic testing is highly sensitive to micro-defects and can be used to detect hidden damage and defects inside materials. At present, most tests are carried out on specimens, and there are few nonlinear ultrasonic tests for fatigue damage ...
Pengfei Wang +4 more
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