Results 1 to 10 of about 28,811 (266)

Investigation on the influence of structural surface characteristics on stress wave propagation behavior

Frontiers in Earth Science
When stress waves propagate in rock slopes, they are influenced by various factors such as structural plane characteristics (e.g., stiffness, number, spacing, thickness), sawtooth structural characteristics (e.g., stiffness, angle of sawtooth structural ...
Pengxu Jing, Pengxu Jing, Wenbo Zheng, Haiying Wang, Yang Wang, Haitao Yang   +5 more
doaj   +3 more sources

Numerical Analysis of Curvature Effects on Acoustoelastic Surface Waves in Cylindrical Structures [PDF]

Sensors
In this study, the influence of axial stress on surface wave propagation along cylindrical surfaces is investigated, with particular emphasis on quantifying curvature effects on acoustoelastic coefficients.
Yongjiang Ma, Chunguang Xu, Changhong Chen, Shuangxu Yang   +3 more
doaj   +2 more sources

Measurement of Stress Waves Propagation in Percussive Drilling [PDF]

Sensors, 2021
This work describes the results of a test campaign aimed to measure the propagation of longitudinal, torsional, and flexural stress waves on a drill bit during percussive rock drilling. Although the stress wave propagation during percussive drilling has been extensively modeled and studied in the literature, its experimental characterization is poorly ...
Scaccabarozzi D., Saggin B.
openaire   +4 more sources

Tomography of the dynamic stress coefficient for stress wave prediction in sedimentary rock layer under the mining additional stress

International Journal of Mining Science and Technology, 2021
In this study, the tomography of dynamic stress coefficient (TDSC) was established based on a mechanical model of stress wave propagation in bedding planes and a mathematical model of the stress wave attenuation in rock masses.
Wenlong Shen, Guocang Shi, Yungang Wang, Jianbiao Bai, Ruifeng Zhang, Xiangyu Wang   +5 more
doaj   +1 more source

Study on the Combined Effect of Inclined Natural Fracture and Water Jet Slot on the Blast-Induced Crack Propagation Law

Shock and Vibration, 2022
For the purpose of uncovering the influence law on the explosion stress wave transmission and blast-induced crack propagation by inclined natural fracture and water jet slot, the influential mechanism for the transmission law of explosion stress wave due
Dengfeng Su, Zizheng Jia, Qiang Zhu, Zhengguo Li, Banghong Chen, Dandan Zheng, Renjun Tian   +6 more
doaj   +1 more source

Effect of stress waveform on the rock blasting crack propagation mechanism using numerical simulation

工程科学学报, 2022
The type, proportion, and charging method of explosives produce different stress waveforms, which greatly affect rock crack propagation. Because of the complex interaction law between waveform parameters such as the peak value, wavelength, energy, and ...
Yong-qi LI, Zheng-zhao LIANG, Xi-kun QIAN, Hong-bo LIU   +3 more
doaj   +1 more source

Study of the Impact of Non-linear Piezoelectric Constants on the Acoustic Wave Propagation on Lithium Niobate [PDF]

Журнал нано- та електронної фізики, 2016
Impact of nonlinear piezoelectric constants on surface acoustic wave propagation on a piezoelectric substrate is investigated in this work. Propagation of acoustic wave propagation under uniform stress is analyzed; the wave equation is obtained by ...
C. Soumali, D. Benatia
doaj   +1 more source

Study on Propagation Depth of Ultrasonic Longitudinal Critically Refracted (LCR) Wave

Sensors, 2020
The accurate measurement of stress at different depths in the end face of a high-pressure compressor rotor is particularly important, as it is directly related to the assembly quality and overall performance of aero-engines.
Yongmeng Liu, Enxiao Liu, Yuanlin Chen, Xiaoming Wang, Chuanzhi Sun, Jiubin Tan   +5 more
doaj   +1 more source

Effects of Unidirectional In Situ Stress on Crack Propagation of a Jointed Rock Mass Subjected to Stress Wave

Shock and Vibration, 2021
This paper proposes a large-scale experiment combined with multiple cement mortar blocks to simulate stress wave propagation across a jointed rock mass under unidirectional in situ stress.
Zhanfeng Fan, Jianhua Cai
doaj   +1 more source

Experimental and Numerical Studies on Bond Quality of Fully Grouted Rockbolt under Confining Pressure and Pull-Out Load

Shock and Vibration, 2022
In mining engineering, the in situ stress changes with the stress induced by the surrounding mining activities. It positively or negatively affects the propagation of ultrasonic guided waves in rockbolts.
Shuisheng Yu, Leilei Niu, Jin Chen
doaj   +1 more source