Journal ArticleDOI
3D viscous-spring artificial boundary in time domain
TLDR
In this paper, a 3D viscous-spring artificial boundary (VSAB) in the time domain is proposed for dynamic soil-structure interaction problems, which can be conveniently incorporated in the general finite element program.Abstract:
After a brief review of studies on artificial boundaries in dynamic soil-structure interaction, a three-dimensional viscous-spring artificial boundary (VSAB) in the time domain is developed in this paper. First, the 3D VSAB equations in the normal and tangential directions are derived based on the elastic wave motion theory. Secondly, a numerical simulation technique of wave motion equations along with the VSAB condition in the time domain is studied. Finally, numerical examples of some classical elastic wave motion problems are presented and the results are compared with the associated theoretical solutions, demonstrating that high precision and adequate stability can be achieved by using the proposed 3D VSAB. The proposed 3D VSAB can be conveniently incorporated in the general finite element program, which is commonly used to study dynamic soil-structure interaction problems.read more
Citations
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Journal ArticleDOI
Non-linear seismic responses of tunnels within normal fault ground under obliquely incident P waves
TL;DR: In this article, the authors deduced the formulas of equivalent nodal forces for the 2-D plane P waves with arbitrary incident angles and implemented them into the commercial software ABAQUS.
Journal ArticleDOI
Effective non-reflective boundary for Lamb waves: Theory, finite element implementation, and applications
Yanfeng Shen,Victor Giurgiutiu +1 more
TL;DR: A modified Lysmer–Kuhlemeyer approach to be used in the NRB design for Lamb wave problems is proposed, which can be effectively and conveniently implemented in commercial finite element (FE) codes.
Journal ArticleDOI
Surface-wave attenuation by periodic pile barriers in layered soils
Xingbo Pu,Zhifei Shi +1 more
TL;DR: In this paper, the dispersion relation and attenuation zones for surface waves in a periodic pile and layered soil system were derived based on the periodic theory of solid-state physics.
Journal ArticleDOI
Impact of incident angles of P waves on the dynamic responses of long lined tunnels
TL;DR: In this article, the impact of the incident angle of earthquake motion on the seismic response of the long-lined tunnels is studied, and the formulas of equivalent nodal forces for the plane P wave with arbitrary incident angle are deduced and implemented into the commercial software abaqus.
References
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Book
Quantitative seismology : theory and methods
Keiiti Aki,Paul Richards +1 more
TL;DR: This work has here attempted to give a unified treatment of those methods of seismology that are currently used in interpreting actual data and develops the theory of seismic-wave propagation in realistic Earth models.
Journal ArticleDOI
Finite Dynamic Model for Infinite Media
John Lysmer,Roger L. Kuhlemeyer +1 more
TL;DR: In this paper, a numerical method for the dynamic analysis of infinite continuous systems is developed, applicable to systems for which all exciting forces and geometrical irregularities are confined to a limited region and is applicable to both transient and steady state problems.
Journal ArticleDOI
Absorbing boundary conditions for difference approximations to the multi-dimensional wave equation
TL;DR: In this paper, the conditions aux limites absorbantes analytiques for multidimensional linear systems were constructed, with l'aide d'approximations aux differences.
Book
Soil-structure-interaction analysis in time domain
TL;DR: In this paper, the procedures to perform nonlinear soil-structure-interaction analysis in the time domain are summarized, where the nonlinearity is restricted to the structure and possibly an adjacent irregular soil region.
Journal ArticleDOI
The seismic surface pulse.
TL;DR: This is Contribution No. 132 of the Lamont Geological Observatory of Columbia University, which describes the history of Pendulum Observations at Sea and its implications for modern geology.