Numerical modeling of collinear mixing of compressional and shear waves in nonlinear elastic media using the iterative nonlinear contrast source method

2019 ◽  
Vol 146 (4) ◽  
pp. 3073-3073
Author(s):  
Sundaraelangovan Selvam ◽  
Arno Volker ◽  
Paul L. van Neer ◽  
Nico de Jong ◽  
Martin D. Verweij
Keyword(s):  
Numerical Modeling ◽  
Shear Waves ◽  
Elastic Media ◽  
Source Method ◽  
Nonlinear Elastic

Propagation of coherent shear waves in scattering elastic media

2021 ◽  
Vol 103 (5) ◽  
Author(s):  
Alverède Simon ◽  
Régis Wunenburger ◽  
Tony Valier-Brasier
Keyword(s):  
Shear Waves ◽  
Elastic Media

Self-Similarity Problems in Nonlinear Elastic Media

2020 ◽  
pp. 2211-2219
Author(s):  
Anatoliy A. Burenin ◽  
Dmitrii A. Potianikhin ◽  
Marina V. Shitikova
Keyword(s):  
Elastic Media ◽  
Self Similarity ◽  
Nonlinear Elastic

scholarly journals Stress-dependent amplification of active forces in nonlinear elastic media

Soft Matter ◽  
2019 ◽  
Vol 15 (2) ◽  
pp. 331-338 ◽  
Author(s):  
Pierre Ronceray ◽  
Chase P. Broedersz ◽  
Martin Lenz
Keyword(s):  
Nonlinear Elasticity ◽  
Molecular Motors ◽  
Surrounding Medium ◽  
Elastic Media ◽  
Stress Dependent ◽  
Nonlinear Elastic ◽  
Contractile Cells

Forces generated by molecular motors and contractile cells can be dramatically amplified by the nonlinear elasticity of the surrounding medium.

Advanced Numerical Modeling of Nonlinear Elastic Cable With Recovery Characteristics

2017 ◽  
Author(s):  
Sung-Hyun Choi ◽  
Kyoung-Su Park
Keyword(s):  
Numerical Modeling ◽  
Steel Wire ◽  
High Sensitivity ◽  
Industrial Applications ◽  
Parallel Robots ◽  
Burger Model ◽  
Lower Weight ◽  
Nonlinear Elastic ◽  
Good Agreement

Cable driven parallel robots (CDPRs) have many advantages such as low inertia and large workspace. These advantages lead to the industrial applications. CDPRs mainly use Dyneema polymer cable for more high sensitivity because it has advantage of the lower weight than steel wire. However, the polymer cable is continuously deformed when actuating the CDPR because of the elasto-plastic cable characteristics such as recovery. In this paper, numerical cable recovery was proposed using the modified burger model. Finally, the models were simulated and compared with the experimental profiles. As the result, the simulations are good agreement with the experimental profiles.

Advanced Numerical Modeling of Nonlinear Elastic Cable With Permanent Stretch Using Cable Driven Parallel Robot

2017 ◽  
Author(s):  
Sung-Hyun Choi ◽  
Kyoung-Su Park
Keyword(s):  
Numerical Modeling ◽  
Steel Wire ◽  
Parallel Robot ◽  
Parallel Robots ◽  
Cable Model ◽  
Lower Weight ◽  
Simulation Results ◽  
Nonlinear Elastic ◽  
Good Agreement ◽  
Elastic Characteristics

Since cable driven parallel robots (CDPRs) have many advantages, they have been used in many industrial fields. Fully constrained CDPRs mainly use Dyneema polyethylene because it has advantage of the lower weight than steel wire. However, the polyethylene cable has complex elastic characteristics (e.g. permanent stretch and hysteresis). In this paper, the advanced numerical modeling of nonlinear elastic cable with permanent stretch using cable driven parallel robot was derived and simulated for various cable condition. Based on the advanced numerical nonlinear cable model, the simulation was carried out under the various cable lengths and tensions. Compared to the experimental results, the simulation results are good agreement with the experimental data.

Surface solitons in nonlinear elastic media

1996 ◽  
Vol 346 (1-3) ◽  
pp. 337-345 ◽  
Author(s):  
Alexander S Kovalev ◽  
Eugen S Syrkin
Keyword(s):  
Elastic Media ◽  
Nonlinear Elastic

Virtual shear source makes shear waves with air guns

Geophysics ◽  
2007 ◽  
Vol 72 (2) ◽  
pp. A7-A11 ◽  
Author(s):  
Andrey Bakulin ◽  
Albena Mateeva ◽  
Rodney Calvert ◽  
Patsy Jorgensen ◽  
Jorge Lopez
Keyword(s):  
Shear Wave ◽  
Shear Waves ◽  
Shear Velocity ◽  
Velocity Profiles ◽  
Virtual Source ◽  
S Wave ◽  
Converted Wave ◽  
Source Method ◽  
Vsp Data ◽  
Walkaway Vsp

We demonstrate a novel application of the virtual source method to create shear-wave sources at the location of buried geophones. These virtual downhole sources excite shear waves with a different radiation pattern than known sources. They can be useful in various shear-wave applications. Here we focus on the virtual shear check shot to generate accurate shear-velocity profiles in offshore environments using typical acquisition for marine walkaway vertical seismic profiling (VSP). The virtual source method is applied to walkaway VSP data to obtain new traces resembling seismograms acquired with downhole seismic sources at geophone locations, thus bypassing any overburden complexity. The virtual sources can be synthesized to radiate predominantly shear waves by collecting converted-wave energy scattered throughout the overburden. We illustrate the concept in a synthetic layered model and demonstrate the method by estimating accurate P- and S-wave velocity profiles below salt using a walkaway VSP from the deepwater Gulf of Mexico.

Numerical Modeling of Nonlinear Elastic Components of Mooring Systems

2005 ◽  
Vol 30 (1) ◽  
pp. 37-46 ◽  
Author(s):  
I. Tsukrov ◽  
O. Eroshkin ◽  
W. Paul ◽  
B. Celikkol
Keyword(s):  
Numerical Modeling ◽  
Nonlinear Elastic
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