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PARALLEL ANALYSIS OF COMBINED FINITE/DISCRETE ELEMENT SYSTEMS ON PC CLUSTER
引用本文:王福军,Y.T.FENG,D.R.J.OWEN,张静,刘洋. PARALLEL ANALYSIS OF COMBINED FINITE/DISCRETE ELEMENT SYSTEMS ON PC CLUSTER[J]. Acta Mechanica Sinica, 2004, 20(5): 534-540. DOI: 10.1007/BF02484276
作者姓名:王福军  Y.T.FENG  D.R.J.OWEN  张静  刘洋
作者单位:[1]CollegeofWaterConservancy&CivilEng.,ChinaAgriculturalUniversity,Beijing100083,China [2]Civil&ComputationalEngineeringCentre,UniversityofWalesSwansea,Swansea,SA28PP,U.K
基金项目:国家自然科学基金;the Engineering and Physical Sciences Research Council
摘    要:

关 键 词:并行计算  有限元  离散元  PC群
收稿时间:2003-04-18

Parallel analysis of combined finite/discrete element systems on PC cluster
Wang Fujun,Y. T. Feng,D. R. J. Owen,Zhang Jing,Liu Yang. Parallel analysis of combined finite/discrete element systems on PC cluster[J]. Acta Mechanica Sinica, 2004, 20(5): 534-540. DOI: 10.1007/BF02484276
Authors:Wang Fujun  Y. T. Feng  D. R. J. Owen  Zhang Jing  Liu Yang
Affiliation:(1) College of Water Conservancy & Civil Eng., China Agricultural University, 100083 Beijing, China;(2) Civil & Computational Engineering Centre, University of Wales Swansea, SA2 8PP Swansea, U.K.
Abstract:A computational strategy is presented for the nonlinear dynamic analysis of largescale combined finite/discrete element systems on a PC cluster. In this strategy, a dual-level domain decomposition scheme is adopted to implement the dynamic domain decomposition. The domain decomposition approach perfectly matches the requirement of reducing the memory size per processor of the calculation. To treat the contact between boundary elements in neighbouring subdomains, the elements in a subdomain are classified into internal, nterfacial and external elements. In this way, all the contact detect algorithms developed for a sequential computation could be adopted directly in the parallel computation. Numerical examples show that this implementation is suitable for simulating large-scale problems. Two typical numerical examples are given to demonstrate the parallel efficiency and scalability on a PC cluster. The project supported by the National Natural Science Foundation of China (10372114) and the Engineering and Physical Sciences Research Council (EPSRC) of UK (GR/R21219)
Keywords:parallel computation  finite element  discrete element  PC cluster
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