Results 41 to 50 of about 68,049 (303)

Simulation-Based Generation of Representative and Valid Training Data for Acoustic Resonance Testing

open access: yesApplied Sciences, 2020
Analyzing eigenfrequencies of serial parts by acoustic resonance testing enables an efficient nondestructive assessment of component quality or structural state. Usually, each application is based on experimentally acquired training data, which represent
Matthias Heinrich   +2 more
doaj   +1 more source

Training manuals for nondestructive testing using magnetic particles [PDF]

open access: yes, 1968
Training manuals containing the fundamentals of nondestructive testing using magnetic particle as detection media are used by metal parts inspectors and quality assurance specialists. Magnetic particle testing involves magnetization of the test specimen,

core   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal   +2 more
wiley   +1 more source

Acoustic emission frequency discrimination [PDF]

open access: yes, 1988
In acoustic emission nondestructive testing, broadband frequency noise is distinguished from narrow banded acoustic emission signals, since the latter are valid events indicative of structural flaws in the material being examined. This is accomplished by
Graham, Lloyd J., Sugg, Frank E.
core   +1 more source

Development of Sustainable MgO–C Refractories Using MgO–C Recyclates and a Novel Eco‐Friendly Fructose–Tannin Binder Crosslinked With Citric Acid

open access: yesAdvanced Engineering Materials, EarlyView.
This study develops sustainable MgO–C refractories using recycled materials and eco‐friendly fructose–tannin binders. The enhanced performance of citric acid as a cross‐linker and functional additives on mechanical and thermomechanical properties was examined. Characterization included strength tests, immersion trials, and microstructural and inclusion
Dinesh K. Gunasekar   +7 more
wiley   +1 more source

Data Processing at the Flaw Detector with Combined Multisector Eddy-Current Transducer

open access: yesProceedings of the International Conference on Applied Innovations in IT, 2014
There is described data processing at the flaw detector with combined multisectional eddy-current transducer and heterofrequency magnetic field. The application of this method for detecting flaws in rods and pipes under the conditions of significant ...
Evgeny Yakimov   +3 more
doaj   +1 more source

Influence of internal imperfections on the fatigue resistance of cast steel – testing methodology [PDF]

open access: yesMATEC Web of Conferences, 2019
Tensile fatigue specimen of G20Mn5 and G22NiMoCr5-6 were tested to quantify the influence of internal defects on the fatigue resistance of cast steel components.
Nagel Sven   +4 more
doaj   +1 more source

Micromagnetic Characterization of Operation-Induced Damage in Charpy Specimens of RPV Steels

open access: yesApplied Sciences, 2021
The embrittlement of two types of nuclear pressure vessel steel, 15Kh2NMFA and A508 Cl.2, was studied using two different methods of magnetic nondestructive testing: micromagnetic multiparameter microstructure and stress analysis (3MA-X8) and magnetic ...
Madalina Rabung   +6 more
doaj   +1 more source

Use of medical and dental X-ray equipment for nondestructive testing [PDF]

open access: yes, 1969
Industrial X ray equipment is used for nondestructive testing to detect defects in metal joints, electrical terminal blocks, sealed assemblies, and other hardware.

core   +1 more source

In Situ Study of Resistive Switching in a Nitride‐Based Memristive Device

open access: yesAdvanced Functional Materials, EarlyView.
In situ TEM biasing experiment demonstrates the volatile I‐V characteristic of MIM lamella device. In situ STEM‐EELS Ti L2/L3 ratio maps provide direct evidence of the oxygen vacancies migrations under positive/negative electrical bias, which is critical for revealing the RS mechanism for the MIM lamella device.
Di Zhang   +19 more
wiley   +1 more source

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