The stresses produced in an elastic half-space by a pressure pulse applied uniformly over a circular area: role of the pulse duration

Wave Motion ◽  
1991 ◽  
Vol 14 (1) ◽  
pp. 1-9 ◽  
Author(s):  
F.G. Laturelle
Keyword(s):  
Half Space ◽  
Pulse Duration ◽  
Pressure Pulse ◽  
Elastic Half Space ◽  
Circular Area

The role of soil anisotropy on SH wave scattering by a lined circular elastic tunnel in an elastic half-space soil medium

2019 ◽  
Vol 125 ◽  
pp. 105721 ◽  
Author(s):  
Zailin Yang ◽  
Guanxixi Jiang ◽  
Cheng Sun ◽  
Tongsuo Tang ◽  
Yong Yang
Keyword(s):  
Half Space ◽  
Wave Scattering ◽  
Elastic Half Space ◽  
Sh Wave ◽  
Soil Medium

Impact of a Rigid Body on an Elastic Half Space

1977 ◽  
Vol 44 (2) ◽  
pp. 227-230 ◽  
Author(s):  
G. N. Bycroft
Keyword(s):  
Steady State ◽  
Rigid Body ◽  
Half Space ◽  
Frequency Factor ◽  
Elastic Half Space ◽  
Rigid Plate ◽  
Fourier Synthesis ◽  
Satisfactory Solution ◽  
Circular Area

A Fourier synthesis of the steady-state vibrations of a rigid plate on an elastic half space is used to determine the deceleration and penetration of a rigid body impacting an elastic half space over a flat circular area. In order to obtain a satisfactory solution, it is necessary to integrate to a large value of the frequency factor. The theoretical values are compared with some simple experiments on lead and Neoprene.

XIII.—Layered Systems Subjected to Asymmetric Surface Shears

1963 ◽  
Vol 66 (3) ◽  
pp. 140-149
Author(s):  
R. A. Westmann
Keyword(s):  
General Solution ◽  
Half Space ◽  
Elastic Layer ◽  
Elastic Half Space ◽  
Numerical Results ◽  
Shearing Force ◽  
Layered Systems ◽  
Circular Area ◽  
Stress Components

SynopsisThis paper formulates a general solution, within the scope of classical elastostatic theory, for the problem of layered systems subjected to asymmetric surface shears. As an illustrative example the solution for the problem of an elastic layer supported on an elastic half-space is presented for the particular loading consisting of a surface shearing force uniformly distributed over a circular area. Numerical results are included indicating some displacement and stress components of interest.

The efficiency of application of virtual cross-sections method and hypotheses MELS in problems of wave signal propagation in elastic waveguides with rough surfaces

2016 ◽  
pp. 3564-3575 ◽  
Author(s):  
Ara Sergey Avetisyan
Keyword(s):  
Half Space ◽  
Cross Sections ◽  
Classical Method ◽  
Signal Propagation ◽  
Elastic Half Space ◽  
Layered Systems ◽  
Surface Layers ◽  
Inhomogeneous Surface ◽  
Wave Signal ◽  
The Impact

The efficiency of virtual cross sections method and MELS (Magneto Elastic Layered Systems) hypotheses application is shown on model problem about distribution of wave field in thin surface layers of waveguide when plane wave signal is propagating in it. The impact of surface non-smoothness on characteristics of propagation of high-frequency horizontally polarized wave signal in isotropic elastic half-space is studied. It is shown that the non-smoothness leads to strong distortion of the wave signal over the waveguide thickness and along wave signal propagation direction as well.  Numerical comparative analysis of change in amplitude and phase characteristics of obtained wave fields against roughness of weakly inhomogeneous surface of homogeneous elastic half-space surface is done by classical method and by proposed approach for different kind of non-smoothness.

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