Results 21 to 30 of about 60,289 (306)
Study on the tensile properties of sandstone with different water contents under freeze-thaw cycles
Gong-kuang zidonghua, 2023 Mines in cold regions of China are affected by freeze-thaw cycles, resulting in uneven expansion and contraction of rocks, leading to the formation of cracks. At the same time, the expansion of cracks due to water frost heave between cracks leads to rock
MIAO Haodong, REN Fuqiang
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Rock burst risk assessment of working face during open-off cut based on acoustic emission monitoring
Meikuang Anquan, 2021 Impact risk assessment is a work that must be carried out in driving and stoping stage in mining coal seam with impact risk to ensure the safety of driving and stoping working face.
XING Linnan
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On the Anatomy of Acoustic Emission
The Journal of the Acoustical Society of AmericaAbrupt frictional fault failure is normally accompanied by acoustic emission (AE)—impulsive elastic wave broadcast—with amplitude proportional to particle velocity. The cumulative sum of the fault particle velocities is a slip displacement. In laboratory shear experiments described here, measurements of a sequence of laboratory earthquakes includes ...
Robert A. Guyer +4 more
openaire +2 more sources
Diesel Engine Valve Clearance Detection Using Acoustic Emission [PDF]
, 2010 This paper investigated, using experimental method, the suitability of acoustic emission (AE) technique for the condition monitoring of diesel engine valve faults.
Gu, Fengshou +7 more
core +1 more source
Observations of acoustic emission activity during gear defect diagnosis. [PDF]
, 2003 It is widely recognised that acoustic emission (AE) is gaining ground as a non- destructive technique (NDT) for health diagnosis on rotating machinery.
Mba, David +3 more
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Detecting natural crack initiation and growth in slow speed shafts with the Acoustic Emission technology [PDF]
, 2009 This paper presents results of an experimental investigation to assess the potential of the Acoustic Emission (AE) technology for detecting natural cracks in operational slow speed shafts.
Mba, David, Elforjani, Mohamed
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Karl Popper and the Mechanisms of Hydrogen Embrittlement
Advanced Engineering Materials, EarlyView.Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley +1 more source
Diesel knock combustion and its detection using acoustic emission [PDF]
, 2011 This paper presents an experimental investigation into the detection of excessive Diesel knock using acoustic emission signals. Three different dual-fuel Diesel engine operating regimes were induced into a compression ignition (Diesel) engine operating ...
Lowe, David Patrick +3 more
core
Shock 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
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Multimodal Data‐Driven Microstructure Characterization
Advanced Engineering Materials, EarlyView.A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang +4 more
wiley +1 more source