التفاصيل البيبلوغرافية
| العنوان: |
Solving 2D exterior soft scattering elastodynamic problems by BEM and by FEM-BEM coupling using potentials. |
| المؤلفون: |
Falletta, S.1 (AUTHOR) silvia.falletta@polito.it, Monegato, G.1 (AUTHOR) giovanni.monegato@polito.it, Scuderi, L.1 (AUTHOR) letizia.scuderi@polito.it |
| المصدر: |
AIP Conference Proceedings. 2024, Vol. 3094 Issue 1, p1-4. 4p. |
| مصطلحات موضوعية: |
*ELASTIC wave propagation, *ELASTODYNAMICS, *BOUNDARY element methods, *FINITE element method, *ELASTIC scattering, *COLLOCATION methods, *INTEGRAL representations |
| مستخلص: |
We consider the decomposition into scalar potentials for the simulation of transient 2D soft scattering elastic wave propagation problems in unbounded isotropic homogeneous media. The vector elastodynamic equation is reformulated in terms of two scalar wave equations, that are coupled by the Dirichlet boundary conditions. These are successively solved by using their associated space-time Boundary Integral Equation (BIE) representations. The corresponding Boundary Element Method (BEM) is obtained by combining a time convolution quadrature formula with a classical space collocation method. Then, the same boundary integral representation and its discretization are used to define a non-reflecting condition to be imposed on an artificial boundary delimiting the exterior computational domain of interest. In this latter a Finite Element Method (FEM) is applied. [ABSTRACT FROM AUTHOR] |
| قاعدة البيانات: |
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