Kamal Shaker, Morteza Eskandari-Ghadi, Soheil Mohammadi
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引用次数: 0
Abstract
Dynamic response of a transversely isotropic layered half-space composed of alternatively arbitrary poroelastic and elastic materials is numerically investigated through the Meshless Local Petrov–Galerkin (MLPG) method. The governing equations of the porous layers are the formulation of the Biot’s theory, and the equations of motion for single-phase elastic media are considered for pure elastic layers. Furthermore, the Perfectly Matched Layer (PML) concepts are utilized to prepare the geometry of unbounded domain for the numerical analysis. In this regard, the stretched coordinates in PML are introduced in such a way that the truncating procedure does not affect the responses in an arbitrary part of the truncated domain. The continuity condition at the interface of adjacent layers, which may be either elastic-elastic, elastic-poroelastic, or poroelastic-poroelastic, and the jump condition on the excitation area are directly and precisely imposed to the inhomogeneous media. As the error estimation is an indispensable part of the numerical analysis, the -norm of error is used to assess the truncated model and control the numerical results. To show the validity of the solution, the numerical evaluation for homogeneous case is compared with the analytical solution. For the inhomogeneous media, the layers can be defined based on some fictitious interfaces to have several homogeneous bodies.
期刊介绍:
This journal is specifically dedicated to the dissemination of the latest developments of new engineering analysis techniques using boundary elements and other mesh reduction methods.
Boundary element (BEM) and mesh reduction methods (MRM) are very active areas of research with the techniques being applied to solve increasingly complex problems. The journal stresses the importance of these applications as well as their computational aspects, reliability and robustness.
The main criteria for publication will be the originality of the work being reported, its potential usefulness and applications of the methods to new fields.
In addition to regular issues, the journal publishes a series of special issues dealing with specific areas of current research.
The journal has, for many years, provided a channel of communication between academics and industrial researchers working in mesh reduction methods
Fields Covered:
• Boundary Element Methods (BEM)
• Mesh Reduction Methods (MRM)
• Meshless Methods
• Integral Equations
• Applications of BEM/MRM in Engineering
• Numerical Methods related to BEM/MRM
• Computational Techniques
• Combination of Different Methods
• Advanced Formulations.