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Architecture & Urban Research Institute

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대한건축학회|대한건축학회논문집 구조계 2017년 1월

논문명 3차원 확장유한요소를 사용한 철근콘크리트 휨 부재의 다중균열 해석 / Analysis of Multi-Cracking in Reinforced Concrete Flexural Members Using 3-Dimensional Extended Finite Elements
저자명 김한수 ; 김건형
발행사 대한건축학회
수록사항 대한건축학회논문집 구조계, Vol.33 No.01 (2017-01)
페이지 시작페이지(19) 총페이지(8)
ISSN 1226-9107
주제분류 구조
주제어 확장유한요소법 ; 3차원 입체요소 ; 콘크리트 균열 ; 균열 해석 ; 철근콘크리트 보 ; 철근콘크리트 슬래브 ; Extended Finite Element Method(XFEM) ; 3D Solid Element ; Concrete Crack ; Crack Analysis ; RC Beam ; RC Slab
요약2 In this paper, the extended finite element method (XFEM) is used to simulate a crack initiation and propagation and to predict post-failure behavior of reinforced concrete flexural members. The reinforced concrete beams modeled by 2-dimension plane element and 3-dimension solid element are compared with the result of RC beam experiments. The analysis results of 2D and 3D XFEM elements are similar to experimental results. It confirmed the validity of the use of the 3D XFEM model for the analysis of RC flexural members. In this process, the locking phenomenon in enriched degree of freedoms was detected. The ways to prevent the locking phenomenon are presented; reducing the time increments or the tolerance of fracture criterion. Subsequently, a reinforced concrete slab modeled by 3-dimensional XFEM was analyzed and compared with the result of a RC slab test as well as the analysis with concrete damaged plasticity (CDP) model which can represent realistic post-failure behavior of concrete. The analysis with XFEM showed a similar load capacity and crack propagation patterns. The validity of 3D XFEM to predict crack patterns and post-failure behavior of RC members was demonstrated.
소장처 대한건축학회
언어 한국어
DOI https://doi.org/10.5659/JAIK_SC.2017.33.1.19
분석서지
건축구조 > 기타 연구분야 > 구조물의 해석 및 설계방법