Results 271 to 280 of about 213,770 (341)

Stress-Pore-Permeation Characteristics of Coal Specimens with Different Strengths Based on Acoustic Emission Fractals. [PDF]

ACS Omega
Ji H, Wang S, Xin Y, Wang J, Wang W, Liang Y, Li K.   +6 more
europepmc   +1 more source

Using Acoustic Emission Method When Carrying out Fatigue Tests of Pitch Arm of EH-101 Helicopter

, 2010
Aleksejs Nasibullins
openalex   +1 more source

Study on fracture parameter calibration and failure characteristics of rock with hole and crack

Deep Underground Science and Engineering, EarlyView.
The SIF and plastic zone equations for a single hole and crack have been derived. The model's failure state leads to the identification of four types of cracks. The plastic zone increases with increased brittleness and decreased crack length. Abstract Cracks within the surrounding rock of roadways significantly affect their stability and failure ...
Shaochi Peng, Wensong Wang
wiley   +1 more source

Comparative Analysis of the Spatiotemporal Evolution Patterns of Acoustic Emission Source Localization Under True Triaxial Loading and Loading-Unloading Conditions in Sandstone. [PDF]

Sensors (Basel)
Chen P, Yu S, Wang H, Wang Z, Li N.
europepmc   +1 more source

Shear behavior of bolt–grout interfaces under constant normal stiffness: Influence of grout strength and thickness

Deep Underground Science and Engineering, EarlyView.
The effects of grout strength and thickness on the shear behavior of bolt–grout interfaces (BGI) under constant normal stiffness conditions are investigated. Shear strength, failure modes, and acoustic emission characteristics are examined. The findings reveal that grout strength exerts a significantly greater influence on BGI shear strength and ...
Sunhao Zhang, Dongqi Shang, Yujing Jiang, Jinge Zhang, Hongbin Chen, Tianqi Jiang   +5 more
wiley   +1 more source

Acoustic emission spectrum for mine hazards identification and prevention. [PDF]

Sci Rep
Vassilyev I, Mendakulov Z, Imansakipova B, Aitkazinova S, Issabayev K, Imansakipova N, Madimarova G.   +6 more
europepmc   +1 more source

An optimizing microseismic method for rock burst early warning based on mining production process

Deep Underground Science and Engineering, EarlyView.
A classification early warning method of rock burst based on hourly microseismic data is proposed, which can be combined with the on‐site production process to provide more timely warning. Abstract Microseismic (MS) events have been reported in nearly every coal mining country, which could well lead to rock burst in underground coal mines.
Zepeng Han, Linming Dou, Wu Cai, Mingbo Chi, Guojun Xi, Shuai Chen, Biao Jiao   +6 more
wiley   +1 more source

Characterization of acoustic emission parameters and identification of staged fracture propagation in solidified body-coal combination based on experimental and machine learning approaches. [PDF]

Sci Rep
Tan Y, Cheng H, He M, Guo W, Bai E, Li H, Guo W, Wang Y, Zhang S, Chang B, Hu S.   +10 more
europepmc   +1 more source

Surface hydration‐induced damage in tight oil‐bearing sandy conglomerate reservoirs

Deep Underground Science and Engineering, EarlyView.
A series of techniques such as X‐ray diffraction, scanning electron microscopy, energy‐dispersive spectroscopy, conductivity tests, and infrared thermal imaging were used. The key findings are the identification of a two‐stage surface hydration process and the elucidation of the effects of various minerals and elements on the hydration process ...
Anbang Zhao, Shuheng Du, Yuan Zhang, Jinghong Hu, Bo Zhou, Yun Wei   +5 more
wiley   +1 more source

Multi-Variant Damage Assessment in Composite Materials Using Acoustic Emission. [PDF]

Sensors (Basel)
Gee M, Roshanmanesh S, Hayati F, Papaelias M.   +3 more
europepmc   +1 more source