미시적 재료모델을 사용한 원전 격납건물의 비선형 응력해석

A nonlinear stress analysis of nuclear containment building using microscopic material model

  • 이상진 (한국원자력연구소 선입연구원·공학박사) ;
  • 김현아 (한국원자력연구소 석사후연수생·공학석사) ;
  • 서정문 (한국원자력연구소 책임기술원·공학박사)
  • 발행 : 2000.10.01

초록

Nonlinear stress analysis of nuclear containment building is carried out using microscopic concrete material model. The present study mainly focuses on the evaluation of the ultimate pressure capacity of idealized containment building in nuclear power plant. For this purpose, an eight-node degenerated shell element it adopted and an imaginary opening in the apex of containment building is allowed in FE model. From numerical analysis, the adopted concrete material model performs well and has a good agreement with the result obtained by using ABAQUS. Finally, we propose the present study as a benchmark test for nonlinear analysis of containment building.

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