Wave Reflection from the Free Boundary of Porous-Elastic Liquid-Saturated Half-Space

2005 ◽  
Vol 32 (3) ◽  
pp. 327-339 ◽  
Author(s):  
N. S. Gorodetskaya
Keyword(s):  
Free Boundary ◽  
Half Space ◽  
Wave Reflection ◽  
Elastic Liquid

Dynamic Analysis for Circular Inclusion Near Interfacial Crack Impacted by SH-Wave in Half Space

2012 ◽  
Vol 28 (1) ◽  
pp. 143-151 ◽  
Author(s):  
H. Qi ◽  
J. Yang ◽  
Y. Shi ◽  
J. Y. Tian
Keyword(s):  
Free Boundary ◽  
Dynamic Analysis ◽  
Green’S Function ◽  
Half Space ◽  
Green's Function ◽  
Interfacial Crack ◽  
Circular Inclusion ◽  
Wave Number ◽  
Complex Method ◽  
Sh Wave

ABSTRACTComplex method and Green's function method are used here to investigate the dynamic analysis for circular inclusion near interfacial crack impacted by SH-wave in bi-material half-space. Firstly, the displacement expression of the scattering wave was constructed which satisfied the free boundary conditions, then Green's function could be constructed, which was an essential solution to the displacement field for an elastic right-angle space with a circular inclusion impacted by out-plane harmonic line source loading at vertical surface. Secondly, crack was made out with “crack-division” technique. Meanwhile, the bi-material media was divided into two parts along the bi-material interface based on the idea of interface “conjunction”, and then the vertical surfaces of the two right-angle spaces were loaded with undetermined anti-plane forces in order to satisfy displacement continuity and stress continuity conditions at linking section. So a series of algebraic equations for determining the unknown forces could be set up through continuity conditions and the Green's function. Finally, some examples and results for dynamic stress concentration factor of the circular elastic inclusion were given. Numerical results show that they are influenced by interfacial crack, the incident wave number and the free boundary in some degree.

Acoustic plane-wave reflection from a rough surface over a random fluid half-space

2001 ◽  
Vol 28 (7) ◽  
pp. 751-762 ◽  
Author(s):  
Jin-Yuan Liu ◽  
Chen-Fen Huang
Keyword(s):  
Plane Wave ◽  
Rough Surface ◽  
Half Space ◽  
Wave Reflection

Plane‐wave reflection from a random fluid half‐space

1991 ◽  
Vol 90 (5) ◽  
pp. 2751-2756 ◽  
Author(s):  
Dajun Tang ◽  
George V. Frisk
Keyword(s):  
Plane Wave ◽  
Half Space ◽  
Wave Reflection

REFLECTION OF PLANE WAVES BY THE FREE BOUNDARY OF A POROUS ELASTIC HALF-SPACE

2003 ◽  
Vol 259 (2) ◽  
pp. 253-264 ◽  
Author(s):  
M. CIARLETTA ◽  
M.A. SUMBATYAN
Keyword(s):  
Free Boundary ◽  
Half Space ◽  
Plane Waves ◽  
Elastic Half Space
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