scispace - formally typeset
Search or ask a question
Topic

Acoustic emission

About: Acoustic emission is a research topic. Over the lifetime, 16293 publications have been published within this topic receiving 211456 citations.


Papers
More filters
Journal ArticleDOI
TL;DR: In this paper, the influence of cyclic mining stress on gas-containing coal seams during mining, the seepage properties, acoustic emission (AE) characteristics and energy dissipation of coal under tiered cyclic loading were experimentally investigated.

114 citations

Journal ArticleDOI
01 Aug 2010-Fuel
TL;DR: In this paper, an acoustic emission (AE) system was used to study the damage behavior of some Australian black coal samples subjected to uniaxial compression, and the results showed that sorption of CO 2 can cause a reduction in strength of the coal samples when tested under uniaaxial compression.

113 citations

Journal ArticleDOI
TL;DR: Numerical calculations show that MT-water system supports interface elastic waves with maximal frequencies in a gigahertz range, and models MTs by thin elastic cylindrical shells derive the eigenfrequencies and eigenmodes of confined elastic vibrations in a shell-fluid system.
Abstract: We study thoreticaly vibrational properties of microtubules (MTs), which are long hollow cylindrical macromolecules with a diameter of the order of 25 nm and serve as a major component of cytoskeleton in eukariotic cells. Modeling MTs by thin elastic cylindrical shells, we derive the eigenfrequencies and eigenmodes of confined elastic vibrations in a shell-fluid system. Numerical calculations, based on recently obtained experimental data for Young's modulus of MT, show that MT-water system supports interface elastic waves with maximal frequencies in a gigahertz range. In a long-wavelength limit, there exist three axisymmetric acoustic waves with velocities of about 200 to 600 m/s, and an infinite set of helical waves with a parabolic dispersion law. \textcopyright{} 1996 The American Physical Society.

113 citations

Patent
Jeffrey N. Schoess1
30 Aug 1995
TL;DR: In this paper, an acoustic rotor monitor that is an autonomous self-powered measurement instrument which can detect embedded and hidden fatigue cracks in remotely inaccessible devices such as helicopter rotor system components is presented.
Abstract: An acoustic rotor monitor that is an autonomous self-powered measurement instrument which can detect embedded and hidden fatigue cracks in remotely inaccessible devices such as helicopter rotor system components. A predictive maintenance-related problem for rotor craft is the detection of fatigue cracks as a continuous real-time monitoring process under dynamic rotor system loading conditions. The rotor monitor focuses on the embedding an acoustic emission-based smart sensor directly into the rotor system to measure the high frequency stress waves indicating that a structural crack has propagated as a "self-powered" measurement without reducing structural integrity.

113 citations

Journal ArticleDOI
TL;DR: In this paper, the authors used acoustic emission (AE) to detect and locate the early stages of corrosion and macro-cracks and furthermore classify different crack types to aid maintenance priorities.

113 citations


Network Information
Related Topics (5)
Fracture mechanics
58.3K papers, 1.3M citations
86% related
Ultimate tensile strength
129.2K papers, 2.1M citations
83% related
Finite element method
178.6K papers, 3M citations
83% related
Microstructure
148.6K papers, 2.2M citations
81% related
Thermal conductivity
72.4K papers, 1.4M citations
78% related
Performance
Metrics
No. of papers in the topic in previous years
YearPapers
2023701
20221,350
2021832
2020841
2019918
2018763