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Study on the Formulation of Two Dimensional Infinite Elements

이차원 무한요소 형성에 관한 연구

  • 신용태 (한양대학교 기계설계학과 대학원) ;
  • 임장근 (한양대학교 기계공학과)
  • Published : 1993.05.01

Abstract

Using regular finite elements and infinite elements simultaneously, elastic boundary value problems with infinite domain can be analyzed more effectively and accurately. In this paper, two dimensional infinite elements have been formulated by means of applying the derived mapping function to the coordinates and multiplying the regular displacement shape functions by a decay function. Orders(m, n) of the mapping and decay functions are found for the purpose of obtaining the convergent solutions without respect to the various decay lengthes. As a result of numerical tests for an infinite plate with a hole under internal pressure, two sets of function orders are obtained as follows. (a) n=0, m=1.5 (b) n=m=0.65