| 期刊全称 | A New Boundary Element Formulation in Engineering | | 影响因子2023 | Tania G. B. DeFigueiredo | | 视频video | | | 学科分类 | Lecture Notes in Engineering | | 图书封面 |  | | 影响因子 | 1. 1 The Hybrid Displacement Boundary Element Model This work is concerned with the derivation of a numerical model for the solution of boundary-value problems in potential theory and linear elasticity. It is considered a boundary element model because the final integral equation involves some boundary integrals, whose evaluation requires a boundary discretization. Furthermore, all the unknowns are boundary vari ables. The model is completely new; it differs from the classical boundary element formulation ·in the way it is generated and consequently in the fi nal equations. A generalized variational principle is used as a basis for its derivation, whereas the conventional boundary element formulation is based on Green‘s formula (potential problems) and on Somigliana‘s identity (elas ticity), or alternatively through the weighted residual technique. 2 The multi-field variational principle which generates the formulation in volves three independent variables. For potential problems, these are the potential in the domain and the potential and its normal derivative on the boundary. In the case of elasticity, these variables are displacements in the domain and displacements and trac | | Pindex | Book 1991 |
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发表于 2025-3-21 16:56:25
