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- W168075239 abstract "The efficiency of Boundary Element Methods in the analysis of engineering problems strongly depends on the efficiency of integration algorithms and solvers used. In the last decades several efficient strategies for the evaluation of singular and quasi– singular integrals have been developed, and several strategies have highlighted the advantages of iterative Krylov’s solvers compared to the direct ones. Aiming at improving the efficiency of the matrix–assembly routines, an integration procedure based on the combination of the triangle–polar–coordinate transformation and the Telles’ non–linear coordinate transformation is proposed in this work. Besides, the Jacobi–preconditioned biconjugate gradient (J–BiCG) is adopted for developing the generic substructuring algorithm. It is worth mentioning that discontinuous boundary elements are employed in order to simplify the introduction of coupling conditions between a generic number of subregions, possibly with edges and corners. Thus, not only the solving time but also the storage memory are optimized, since the manipulation of zero blocks is completely avoided. A series of numerical examples is presented in which the performance of the proposed strategies is observed in terms of precision and CPU–time measurements for resulting BE systems of algebraic equations." @default.
- W168075239 created "2016-06-24" @default.
- W168075239 creator A5090245555 @default.
- W168075239 date "2005-01-01" @default.
- W168075239 modified "2023-09-27" @default.
- W168075239 title "Decomposição genérica de domínio para análises 3D via M.E.C. : estudo de eficiência de estratégias voltadas para a análise de problemas de engenharia de grande ordem." @default.
- W168075239 hasPublicationYear "2005" @default.
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