Results 41 to 50 of about 2,686,420 (387)

Relationship between ae signal strength and absolute energy in determining damage classification of concrete structures [PDF]

open access: yes, 2006
The most efficient tools in real monitoring system is acoustic emission (AE). This technique can be used to identify the damage classifications in RC structure.
Abdullah, Siti Radziah   +2 more
core   +2 more sources

Damage classification in reinforced concrete beam by acoustic emission signal analysis [PDF]

open access: yes, 2013
Acoustic Emission (AE) is a non-destructive testing technique which can be used to identify both the damage level and the nature of that damage such as tensile cracks and shear movements at critical zones within a structure.
Aggelis   +24 more
core   +1 more source

Research on Acoustic Emission and Electromagnetic Emission Characteristics of Rock Fragmentation at Different Loading Rates

open access: yesShock and Vibration, 2018
The relationships among the generation of acoustic emission, electromagnetic emission, and the fracture stress of rock grain are investigated, which are based on the mechanism of acoustic emission and electromagnetic emission produced in the process of ...
Fujun Zhao   +6 more
doaj   +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

Analysis of acoustic emission during the melting of embedded indium particles in an aluminum matrix: a study of plastic strain accommodation during phase transformation

open access: yes, 2012
Acoustic emission is used here to study melting and solidification of embedded indium particles in the size range of 0.2 to 3 um in diameter and to show that dislocation generation occurs in the aluminum matrix to accommodate a 2.5% volume change.
A. Galeski   +33 more
core   +1 more source

Quantum Emitters in Hexagonal Boron Nitride: Principles, Engineering and Applications

open access: yesAdvanced Functional Materials, EarlyView.
Quantum emitters in hexagonal boron nitride have emerged as a promising candidate for quantum information science. This review examines the fundamentals of these quantum emitters, including their level structures, defect engineering, and their possible chemical structures.
Thi Ngoc Anh Mai   +8 more
wiley   +1 more source

Fundamental study on a thin-film ae sensor for measurement of behavior of a multi-pad contact slider [PDF]

open access: yes, 1996
To study the fundamental dynamic characteristics of a multi-pad slider for contact recording, we developed a thin-film piezoelectric acoustic emission array sensor on an Si-suspension with an array pattern similar to that of contact pads.
Burger, G.J.   +3 more
core   +3 more sources

Synchrotron Radiation for Quantum Technology

open access: yesAdvanced Functional Materials, EarlyView.
Materials and interfaces underpin quantum technologies, with synchrotron and FEL methods key to understanding and optimizing them. Advances span superconducting and semiconducting qubits, 2D materials, and topological systems, where strain, defects, and interfaces govern performance.
Oliver Rader   +10 more
wiley   +1 more source

Acoustic emission in the friction of composite materials

open access: yesAviation, 2014
The model of acoustic emission signal formation during friction and wearing of surfaces of composite materials was examined. The forms of acoustic emission resultant signals were shown.
Sergey Filonenko, Aleksandr Kosmach
doaj   +1 more source

Fracture behavior and acoustic emission characteristics of sandstone samples with inclined precracks

open access: yesInternational Journal of Coal Science & Technology, 2020
Sandstone samples with precracks of different dip angles were collected from a coal mine roof and subjected to uniaxial compression tests, and acoustic emission (AE) and scanning electron microscopy (SEM) were used to study how the crack dip angle ...
Litong Dou, Ke Yang, X. Chi
semanticscholar   +1 more source

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