Transmitting boundary conditions for 1D peridynamics

2016 ◽  
Vol 110 (4) ◽  
pp. 379-400 ◽  
Author(s):  
Linjuan Wang ◽  
Yongshuai Chen ◽  
Jifeng Xu ◽  
Jianxiang Wang
Keyword(s):  
Boundary Conditions ◽  
Transmitting Boundary

scholarly journals Self-consistent procedure including envelope function normalization for full-zone Schrödinger-Poisson problems with transmitting boundary conditions

2018 ◽  
Vol 124 (20) ◽  
pp. 204501 ◽  
Author(s):  
Devin Verreck ◽  
Anne S. Verhulst ◽  
Maarten L. Van de Put ◽  
Bart Sorée ◽  
Wim Magnus ◽  
...  
Keyword(s):  
Boundary Conditions ◽  
Envelope Function ◽  
Self Consistent ◽  
Transmitting Boundary

The Effect of Wave Propagation on Seismic Response at Transmitting Boundary of Discrete System

2018 ◽  
Vol 878 ◽  
pp. 110-114
Author(s):  
Sang Hun Lee ◽  
Takao Endo ◽  
Ryutaro Kawana
Keyword(s):  
Wave Propagation ◽  
Free Boundary ◽  
Boundary Conditions ◽  
Seismic Response ◽  
Ground Motion ◽  
Response Analysis ◽  
Free Boundaries ◽  
Propagation Condition ◽  
Free Boundary Conditions ◽  
Transmitting Boundary

When analyzing the seismic response of a very long elevated structure such as a Shinkansen viaduct, it is common practice to analyze a cutout of the structure under consideration and treat its both ends as free boundaries. This is attributable to the assumption that seismic response analysis assuming free boundary conditions is more conservative than one assuming non-free boundary conditions. In this study, after finding out that response to harmonic ground motion can be greater than under free-boundary conditions if outward energy dissipation occurs from the analysis domain, a series of numerical experiments was performed to determine whether such phenomena occur in seismic response. Then, after confirming that the frequency components of ground motion that satisfy the wave propagation condition greatly affect seismic response, the study showed that the area of the wave propagation condition region of the Fourier spectrum can be used as an indicator by which to judge the likelihood of occurrence of such phenomena.

Pressure-transmitting boundary conditions for molecular-dynamics simulations

2002 ◽  
Vol 24 (4) ◽  
pp. 421-429 ◽  
Author(s):  
Carsten Schäfer ◽  
Herbert M. Urbassek ◽  
Leonid V. Zhigilei ◽  
Barbara J. Garrison
Keyword(s):  
Molecular Dynamics ◽  
Boundary Conditions ◽  
Molecular Dynamics Simulations ◽  
Transmitting Boundary ◽  
Dynamics Simulations

Perfect boundary conditions for parabolic water-wave models

1992 ◽  
Vol 437 (1899) ◽  
pp. 41-54 ◽  
Keyword(s):  
Boundary Conditions ◽  
Water Wave ◽  
Numerical Results ◽  
Wide Angle ◽  
Parabolic Model ◽  
Impedance Boundary ◽  
Impedance Boundary Conditions ◽  
Wave Models ◽  
Transmitting Boundary ◽  
Generalized Impedance Boundary Conditions

Generalized impedance boundary conditions are presented for parabolic wave models, which provide either perfect diffractive boundary conditions or perfect transmitting boundary conditions. The diffractive conditions permit the modelling of waves in illuminated regions without computations in the shadow regions, while the transmitting conditions allow incident and scattered waves to propagate out of the model. The theory is developed for the simplest parabolic model and for a class of wide-angle parabolic models. Numerical results are presented.

Sign in / Sign up

Export Citation Format

Share Document