Journal of South China University of Technology (Natural Science Edition) ›› 2010, Vol. 38 ›› Issue (6): 140-145.doi: 10.3969/j.issn.1000-565X.2010.06.026

• Mechanical Engineering • Previous Articles     Next Articles

Hybrid Element Method and Its Application to Processing of Essential Boundary Condition

Zhang Zu-jun  Ruan Feng  Zhang Sai-jun   

  1. School of Mechanical and Automotive Engineering,South China University of Technology,Guangzhou 510640,Guangdong,China
  • Received:2009-09-23 Revised:2009-10-14 Online:2010-06-25 Published:2010-06-25
  • Contact: 张祖军（1980-），男，博士生，主要从事模塑成型及其计算机技术研究． E-mail:xz800110@yahoo．cn
  • About author:张祖军（1980-），男，博士生，主要从事模塑成型及其计算机技术研究．
  • Supported by:

    广东省教育部产学研结合计划项目（2007A090302028）

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Abstract:

In order to rationally impose essential boundary conditions in the element-free Galerkin（EFG） method,a hybrid element method coupling the radial point interpolation method（RPIM） and the EFG method is proposed.In this method,the problem domain is divided into two parts： one contains the essential boundary and is solved by the RPIM,and the other is solved by the EFG method;and,a coupling is performed according to the relationship between the two above-mentioned element-free interpolation methods.Numerical examples indicate that the proposed method is easy to program,and that it can concisely and effectively process the essential boundary condition,with a computation accuracy as high as that of the EFG method.

Key words: element-free method, coupling, hybrid element method, essential boundary condition