Results 11 to 20 of about 5,447,906 (320)

Total Focusing Method Based Ultrasonic Phased Array Imaging in Thick Structures [PDF]

open access: yesJournal of Nondestructive Evaluation, Diagnostics and Prognostics of Engineering Systems, 2021
Abstract Ultrasonic non-destructive testing traditionally uses a conventional monolithic transducer. An approach similar to this comprising of independent single transmissions but with reception performed by all the elements in phased array ultrasonics is known as Full Matrix Capture (FMC).
- Sumana, Anish Kumar
openaire   +3 more sources

High-Density Polyethylene Pipe Butt-Fusion Joint Detection via Total Focusing Method and Spatiotemporal Singular Value Decomposition [PDF]

open access: goldProcesses
High-density polyethylene (HDPE) pipes are widely used for urban natural gas transportation. Pipes are usually welded using the technique of thermal butt fusion, which is prone to manufacturing defects that are detrimental to safe operation.
Haowen Zhang   +5 more
openalex   +2 more sources

Total Focusing Method for Imaging Defect in CFRP Composite with Anisotropy and Inhomogeneity [PDF]

open access: gold14th WCCM-ECCOMAS Congress, 2021
Fiber reinforced polymers (FRPs) are increasingly used in thick primary load-bearing structures, while manufacturing and in-service defects occur with a higher chance as the composite thickness increases, which entails the nondestructive detection and ...
Han Xiao   +3 more
openalex   +2 more sources

An Adaptive Total Focusing Method for Ultrasonic Imaging ofArbitrarily Stacked Carbon Fiber-Reinforced Composites [PDF]

open access: diamonde-Journal of Nondestructive Testing
The total focusing method (TFM) is increasingly recognized as a powerful ultrasonic imaging technique for the quality assessment and internal defect detection of carbon fiber-reinforced composites (CFRPs).
Jiancheng Cao   +3 more
doaj   +2 more sources

Multi-Mode Total Focusing Method (MTFM) to Detect High-Temperature Hydrogen Attack (HTHA) – A Review

open access: diamondJournal of Materials Exploration and Findings, 2023
High temperature hydrogen attack (HTHA) is a commonly observed harm component in carbon steels exposed to high temperature and pressure in a hydrogen-rich environment. Hydrogen together with carbon responds to produce methane.
Anjar Oktikawati   +2 more
doaj   +3 more sources

Ultrasonic Total Focusing Imaging Method of Multilayer Composite Structures Using the Root-Mean-Square (RMS) Velocity [PDF]

open access: goldAdvances in Materials Science and Engineering, 2021
Multilayer composite structures have been widely used in industrial manufacturing, and nondestructive testing of these multilayer structures is to ensure their reliable quality and performance.
Xufei Guo, Yan Han
doaj   +2 more sources

Imaging of Internal Defects of Polymer-Modified Wood Using Total Focusing Method [PDF]

open access: yesAdvances in Polymer Technology, 2019
Polymer modification can improve the stability and corrosion resistance of wood, but it could create defects inside wood during the modification processing.
Liping Sun   +4 more
doaj   +2 more sources

An Accelerated Post-processing Calculation Method of Curved Surface Profile Extraction Based on the Total Focusing Method of Ultrasonic Phased Array

open access: diamondJournal of Physics: Conference Series, 2022
Surface profile extraction is a significant process for determining the ultrasonic beam propagation path based on the Fermat’s principle while applying the total focusing method (TFM) of ultrasonic phased array on a curved component immersed in water ...
Fan Li   +4 more
openalex   +2 more sources

Surface imaging using total focusing method on surface waves for non destructive testing

open access: greenNDT & E International, 2023
We demonstrate the effectiveness of total focusing methods (TFM) using Rayleigh waves for surface and subsurface nondestructive inspection of different metals. The relatively low velocity of Rayleigh waves leads to sub-100 μm resolution imaging, with a penetration depth approximately equal to its wavelength.
Mathieu Ducousso   +2 more
openalex   +5 more sources

Ultrasonic Total Focusing Method Technology in Carbon Steel Butt Weld Application

open access: yese-Journal of Nondestructive Testing
Carbon steel butt welds are widely used in aircraft carrier, shipbuilding, railway, aerospace and other industries. As a new technology of ultrasonic non-destructive testing, Total Focusing Method (TFM) technology is a method of image reconstruction in ...
Lixiang Hong, Jiaqiong Lin, Xueling Chen
doaj   +2 more sources

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