Results 11 to 20 of about 9,656 (299)

Phased array probes for air-coupled ultrasonic testing based on cellular polymer

open access: yesResearch and Review Journal of Nondestructive Testing, 2023
Air-coupled ultrasonic testing is an established alternative to conventional ultrasonic methods for testing of light-weight components in aerospace and automotive industry.
Mate Gaal   +6 more
doaj   +1 more source

Parameter optimization method for delamination defects detection of composite laminate using phased array ultrasonic

open access: yesCailiao gongcheng, 2020
Aiming at the problem of accurate identification of delamination defects of composite laminates, an optimization method of activation aperture of phased array ultrasonic testing was proposed by simulation and experiment, and the effects of the activation
CAO Hong-yi   +6 more
doaj   +1 more source

Automated Classification of Pipeline Defects from Ultrasonic Phased Array Total Focusing Method Imaging

open access: yesEnergies, 2022
The defects in the welds of energy pipelines have significantly influenced their safe operation. The inefficient and inaccurate detection of the defects may give rise to catastrophic accidents.
Haibin Wang   +6 more
doaj   +1 more source

Delamination defects testing and evaluation of composite laminates using phased array ultrasonic technique

open access: yesCailiao gongcheng, 2021
Composite materials are prone to delamination defects during the preparation process. For the non-destructive testing and evaluation of carbon fiber reinforced polymer (CFRP) delamination defects, a standard specimen with embedded delamination defects ...
CAO Hong-yi   +8 more
doaj   +1 more source

Phased array ultrasonic testing of micro-flaws in additive manufactured titanium block

open access: yesMaterials Research Express, 2020
While titanium components manufactured by additive manufacturing have been widely used in direct molding of complex components, their performance is strongly affected by existing internal flaws generated in the unique manufacturing process.
Xiaohui Wang   +6 more
doaj   +1 more source

INVESTIGATION INTO THE PRODUCTION FLAWS IN THIN SOLID CARBON LAMINATES BY USING THE ULTRASONIC PHASED ARRAY METHOD [PDF]

open access: yesScientific Journal of Silesian University of Technology. Series Transport, 2018
Composites are used in a wide variety of markets, including the aerospace, architecture, automotive and military sectors. Along with the increased use of composites, multiple non-destructive testing (NDT) methods have been further developed specifically ...
Jan PIL’A   +2 more
doaj   +1 more source

Ultrasonic Imaging of Thick Carbon Fiber Reinforced Polymers through Pulse-Compression-Based Phased Array

open access: yesApplied Sciences, 2021
The use of pulse-compression in ultrasonic non-destructive testing has assured, in various applications, a significant improvement in the signal-to-noise ratio.
Muhammad Khalid Rizwan   +4 more
doaj   +1 more source

Ultrasonic testing via three-dimensional post-processing of non-uniform matrix phased array data [PDF]

open access: yesMATEC Web of Conferences, 2023
The tomography based on post-processing of phased array signals is of great potential for ultrasonic testing to accurately size the detected flaws. The use of matrix phased arrays in ultrasound tomography can provide three-dimensional data both at one ...
Dolmatov Dmitry
doaj   +1 more source

Numerical Investigation of Excitation of Various Lamb Waves Modes in Thin Plastic Films

open access: yesApplied Sciences, 2022
Ultrasonic-guided waves are widely used for the non-destructive testing and material characterization of plates and thin films. In the case of thin plastic polyvinyl chloride (PVC), films up to 3.2 MHz with only two Lamb wave modes, antisymmetrical A0 ...
Rymantas Jonas Kazys   +2 more
doaj   +1 more source

Методы и средства измерения пространственно-временных характеристик ультразвуковых линейных фазированных антенных решеток [PDF]

open access: yes, 2015
Розглянуті методи вимірювання просторово-часових характеристик ультразвукових лінійних фазованих антенних решіток. Представлені структурні схеми розроблених систем вимірювання.
Kraskovskyj, O. P.   +8 more
core   +1 more source

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