Results 11 to 20 of about 20,397,556 (300)
Defect Monitoring of CFRP with Ultrasonic C-Scan Method
Advanced Materials Research, 2011 In this study, carbon fiber reinforced polymer (CFRP) laminates that were under three-point bending load within and without initial impact damage, were detected and monitored by ultrasonic C-scan method. The defect morphology at various load levels was recorded.
Peng Li +5 more
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Ultrasonic C-scan evaluation of Ti-alloy/Al brazed joint
AIP Conference Proceedings, 2013 An indigenously developed brazed joint of Al/Ti was characterized by ultrasonic C-scan method. The study revealed certain debond locations in the brazed joint. These debond locations would have resulted due to the failure of filler material’s joining ability.
G. V. S. Murthy, G. Sridhar
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Ultrasonic C-scan imaging of damage in the quefrency domain
, 2023 The ultrasonic pulse-echo method is well-known for the non-destructive inspection of materials. Setting a suitable time gate and searching for ultrasonic echoes, a C-scan image can be obtained in which defects are highlighted. However, such time domain analysis faces several challenges when inspecting multi-layer heterogeneous materials with complex ...
Yang, Xiaoyu, Kersemans, Mathias
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Neural network correction of ultrasonic C-scan images
A neural network-based approach to the correction of C-scan images is presented. This allows the effects of a finite ultrasonic beam diameter in an immersion experiment to be considered, by training the network on a series of defects of known characteristics. The result is an image which is a better representation of the actual defect.
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Ultrasonic C-Scan Standardization for Polymer-Matrix Composites - Acoustic Considerations [PDF]
, 1998 Ultrasonic C-scan inspection techniques are widely used for the non-destructive evaluation of fiber-reinforced polymer composites. A C-scan is any two-dimensional scan of a specimen that produces a map of a parameter, such as reflected amplitude, as it ...
S. J. Willsher +17 more
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Intelligent damage recognition of composite materials based on deep learning and ultrasonic testing
AIP Advances, 2021 Ultrasonic non-destructive testing can effectively detect damage in aircraft composite materials, but traditional manual testing is time-consuming and labor-intensive.
Caizhi Li +8 more
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Novel hydrophilic polymer couplant for application in ultrasonic non destructive testing [PDF]
, 2001 Ultrasonic Non Destructive Testing (NDT) is used to inspect materials and structures for defects. Water is commonly used in NDT as a couplant to improve ultrasonic transfer between an interrogating probe and test piece.
Bourne, Simon James
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e-Polymers, 2022 Composite materials are more and more widely used in aircraft structural design, and impact damage is the most serious defect/damage form of aviation composite structures in service.
Yang Kang +5 more
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Sensors, 2023 Usually for non-destructive testing at high temperatures, ultrasonic transducers made of PZT and silver electrodes are used, but this could lead to damage to or malfunction of the ultrasonic transducer due to poor adhesion between PZT and silver ...
Vaida Vaskeliene +4 more
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Sensors, 2019 Aiming at the characteristics of the periodic stacking structure of a lithium-ion battery core and the corresponding relationship between the air-coupled ultrasonic transmission initial wave and the wave propagation mode in each layer medium of a lithium-
Honggang Li, Zhenggan Zhou
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