Stochastic Finite Element Analysis by Using Quadrilateral Elements

사변형 요소를 이용한 추계론적 유한요소해석

  • 최창근 (한국과학기술원 토목공학과) ;
  • 노혁천 (한국과학기술원 토목공학과)
  • Received : 1993.02.26
  • Published : 1993.11.30


The extension of the weighted integral method in the area of stochastic finite element analysis is presented. The use of weighted integral method in numerical analysis was extended to CST(constant strain triangle) element by Deodatis to calculate the response variability of 2D stochastic systems. In this paper, the extension of the weighted integral method for general plane-elements is represented. It has been shown that the same mesh used in the deterministic FE analysis can be used in the stochastic FE analysis. Furthermore, because the CST element is a special case which has constant strain-displacement matrix the mingling of CST elements with the other quadrilateral elements in the analysis may also be possible.