A Comparative Study on Coupling of Element-free Galerkin Method and Infinite Element by IE's Shape Function

무한요소 형상함수에 따른 무요소법과의 조합 방법 비교 연구

  • 이상호 (연세대학교 사회환경시스템공학부) ;
  • 김명원 ((주)바이텍코리아 기술연구) ;
  • 윤영철 ((주)시텍컨설턴트 기술연구소)
  • Published : 2003.04.01


This paper deals with a comparative study on coupling of Element-free Galerkin(EFG) method and Infinite Element(IE) by IE's shape function. In this study, mapped infinite elements(mapped IE) and decay function infinite elements(decay IE) are coupled with the EFG method. A coupling procedure of EFG-Mapped IE is much easier to be integrated than a coupled EFG-Decay IE. A coupled EFG-IE method used well-defined functions to preserve the continuity and linear consistency on the interface of the EFG region and IE region. Several benchmark problems are solved to verify the effectiveness and accuracy of the coupling algorithms by IE's shape function. The numerical results show that the developed algorithms work well for the elastic problems with infinite boundaries.