A novel approach to data-driven modeling of damage-induced elastic wave propagation

2021 ◽  
Author(s):  
Daniel Paul Servansky
Keyword(s):  
Wave Propagation ◽  
Elastic Wave ◽  
Elastic Wave Propagation ◽  
Data Driven ◽  
Novel Approach ◽  
Data Driven Modeling

scholarly journals Anisotropic elastic finite-difference modeling of sources and receivers on Lebedev grids

Geophysics ◽  
2020 ◽  
pp. 1-19
Author(s):  
Erik F.M. Koene ◽  
Johan O.A. Robertsson ◽  
Fredrik Andersson
Keyword(s):  
Wave Propagation ◽  
Finite Difference ◽  
Elastic Wave ◽  
Point Source ◽  
Point Sources ◽  
Elastic Wave Propagation ◽  
Novel Approach ◽  
Distributed Array ◽  
Anisotropic Elastic

The Lebedev grid finite-difference (FD) method allows modeling of anisotropic elastic wave propagation. On Lebedev grids, erroneous point-source excitations can create spurious (non-physical) waves. The only known remedy for such artifacts in the literature is the Lisitsa-Vishnevsky method. This method uses a distributed array to create both point-sources and point-receivers on the FD grid. However, the Lisitsa-Vishnevsky method does not fully eliminate spurious artifacts. A novel approach is found in the FD-consistent point-source, which suppresses the spurious artifacts entirely. The method requires no array recording to create point-receivers. The advantage of this method over the Lisitsa-Vishnevsky method is demonstrated with two anisotropic modeling examples.

scholarly journals Active tuning of elastic wave propagation in a piezoelectric metamaterial beam

AIP Advances ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 065009
Author(s):  
Xi-Ning Zhao ◽  
Xiao-Dong Yang ◽  
Wei Zhang ◽  
Huayan Pu
Keyword(s):  
Wave Propagation ◽  
Elastic Wave ◽  
Elastic Wave Propagation

Elastic wave propagation in hierarchical lattices with convex and concave hexagons stacked vertexes

2019 ◽  
Vol 146 (3) ◽  
pp. 1519-1527 ◽  
Author(s):  
ZhiWei Zhu ◽  
ZiChen Deng ◽  
ShuZhan Tong ◽  
BenJie Ding ◽  
JianKe Du
Keyword(s):  
Wave Propagation ◽  
Elastic Wave ◽  
Elastic Wave Propagation ◽  
Hierarchical Lattices
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