Spherical stress wave propagation during an explosion in a viscoelastic medium

1988 ◽  
Vol 24 (6) ◽  
pp. 541-546
Author(s):  
É. A. Koshelev
Keyword(s):  
Wave Propagation ◽  
Stress Wave ◽  
Viscoelastic Medium ◽  
Stress Wave Propagation

scholarly journals Stress Wave Propagation through Rock Joints Filled with Viscoelastic Medium Considering Different Water Contents

2020 ◽  
Vol 10 (14) ◽  
pp. 4797 ◽  
Author(s):  
Xiaolin Huang ◽  
Shengwen Qi ◽  
Bowen Zheng ◽  
Youshan Liu ◽  
Lei Xue ◽  
...  
Keyword(s):  
Wave Propagation ◽  
Water Content ◽  
Seismic Response ◽  
Transmission Coefficient ◽  
Stress Wave ◽  
Viscoelastic Medium ◽  
Rock Joints ◽  
Stress Wave Propagation ◽  
Multiple Reflections ◽  
Joint Spacing

A rock mass often contains joints filled with a viscoelastic medium of which seismic response is significant to geophysical exploration and seismic engineering design. Using the propagator matrix method, an analytical model was established to characterize the seismic response of viscoelastic filled joints. Stress wave propagation through a single joint highly depended on the water content and thickness of the filling as well as the frequency and incident angle of the incident wave. The increase in the water content enhanced the viscosity (depicted by quality factor) of the filled joint, which could promote equivalent joint stiffness and energy dissipation with double effects on stress wave propagation. There existed multiple reflections when the stress wave propagated through a set of filled joints. The dimensionless joint spacing was the main controlling factor in the seismic response of the multiple filled joints. As it increased, the transmission coefficient first increased, then it decreased instead, and at last it basically kept invariant. The effect of multiple reflections was weakened by increasing the water content, which further influenced the variation of the transmission coefficient. The water content of the joint filling should be paid more attention in practical applications.

Effect of interlayer on stress wave propagation in CMC/RHA multi-layered structure

2010 ◽  
Vol 70 (12) ◽  
pp. 1669-1673 ◽  
Author(s):  
Yangwei Wang ◽  
Fuchi Wang ◽  
Xiaodong Yu ◽  
Zhuang Ma ◽  
Jubin Gao ◽  
...  
Keyword(s):  
Wave Propagation ◽  
Stress Wave ◽  
Layered Structure ◽  
Stress Wave Propagation

A Brief Review of Previous Studies on Regularity of Stress Waves Propagation in Micro-Cracks of Rock

2012 ◽  
Vol 170-173 ◽  
pp. 511-515
Author(s):  
Jin Yu ◽  
Yan Yan Cai ◽  
Bo Xue Song ◽  
Xu Chen
Keyword(s):  
Wave Propagation ◽  
Stress Wave ◽  
Mathematic Model ◽  
Practical Significance ◽  
Theoretical Interpretation ◽  
Stress Wave Propagation ◽  
Micro Cracks ◽  
Propagation Law ◽  
Mechanism Research ◽  
Long Time

The research of stress wave propagation law under cracked rock has important theoretical value and practical significance. Because of the discontinuity, nonelasticity and nonlinearity of the cracks, the theoretical interpretation and mechanism research about tress wave propagation law are a great challenge to researchers for a long time. From the establishment of the research method, the determination of mathematic model of micro-cracks and the main solutions, this paper brief reviews the current development of the influence of the complicated micro-cracks on stress wave propagation law.

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