ATTENUATION OF STRESS WAVE PROPAGATION IN PERIODICALLY LAYERED ELASTIC MEDIA

2001 ◽  
Vol 243 (4) ◽  
pp. 747-761 ◽  
Author(s):  
C. HAN ◽  
C.T. SUN
Keyword(s):  
Wave Propagation ◽  
Stress Wave ◽  
Stress Wave Propagation ◽  
Elastic Media ◽  
Layered Elastic Media

NUMERICAL MANIFOLD METHOD (NMM) SIMULATION OF STRESS WAVE PROPAGATION THROUGH FRACTURED ROCK MASS

2013 ◽  
Vol 05 (02) ◽  
pp. 1350022 ◽  
Author(s):  
L. F. FAN ◽  
X. W. YI ◽  
G. W. MA
Keyword(s):  
Wave Propagation ◽  
Rock Mass ◽  
Stress Wave ◽  
Fractured Rock ◽  
Displacement Discontinuity ◽  
Stress Wave Propagation ◽  
Numerical Manifold Method ◽  
Elastic Media ◽  
Fractured Rock Mass ◽  
Numerical Manifold

The present work is devoted to the simulation of stress wave propagation through fractured elastic media, such as rock mass, by using the numerical manifold method (NMM). A single fracture is used to verify the capability and accuracy of the NMM in modeling fractured rock mass. The frequency-dependence on stress wave transmission across a fracture is analyzed. The influence of the fracture specific stiffness on the wave attenuation and effective wave velocity is discussed. The results from the NMM have a good agreement with those obtained from a theoretical displacement discontinuity method (DDM). Taking the advantage that the NMM is able to simulate highly fractured elastic media with a consistent mathematical cover system, a numerical example of stress wave propagation through a fractured rock mass with numerous inherent fractures is presented. It is showed that the results are reasonable and the NMM has a high efficiency in simulating stress wave propagation through highly fractured rock mass. A safety assessment of a tunnel under blast is conducted by using the NMM subsequently. The potential application of the NMM to a more complex fractured rock mass is demonstrated.

Stress-wave propagation in a class of nonhomogeneous elastic media.

AIAA Journal ◽  
1969 ◽  
Vol 7 (9) ◽  
pp. 1710-1716 ◽  
Author(s):  
SHUN-CHIN CHOU ◽  
R. GREIF ◽  
D. E. JOHNSON
Keyword(s):  
Wave Propagation ◽  
Stress Wave ◽  
Stress Wave Propagation ◽  
Elastic Media

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
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