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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국계산역학회 Computers and Concrete, An International Journal Computers and Concrete, An International Journal Vol.15 No.2
- 발행연도
- 2015.2
- 수록면
- 305 - 319 (15page)
이용수
초록· 키워드
오류제보하기
On mesoscopic level, concrete can be treated as a three-phase composite material consisting of mortar, aggregates and interfacial transition zone (ITZ) between mortar and aggregate. A lot of research has confirmed that ITZ plays a crucial role in the mechanical fracture process of concrete. The aim of the present study is to propose a numerical method on mesoscale to analyze the failure mechanism of reinforced concrete (RC) structures under mechanical loading, and then it will help precisely predict the damage or the cracking initiation and propagation of concrete. Concrete is meshed by means of the Rigid Body Spring Model (RBSM) concept, while the reinforcing steel bars are modeled as beam-type elements. Two kinds of RC members, i.e. subjected to uniaxial tension and beams under bending, the fracture process of concrete and the distribution of cracks, as well as the load-deflection relationships are investigated and compared with the available test results. It is found that the numerical results are in good agreement with the experimental observations, indicating that the model can successfully simulate the failure process of the RC members.
목차
등록된 정보가 없습니다.
참고문헌 (21)
참고문헌 신청
Bolander, J.E. / 1998 / Fracture analyses using spring networks with random geometry / Eng. Fract. Mech. 61(5):569~591
Bolander, J.E. / 1999 / Modeling crack development in reinforced concrete structures under service loading / Constr. Build. Mater. 13(1):23~31
Bolander, J.E. / 2000 / Structural concrete analysis using rigid-body-spring networks / Computer-aided Civ. Infrastruct. Eng. 15(2):120~133
Bolander, J.E. / 2002 / Rigid-body-spring network modeling of prestressed concrete members / ACI Struct. J. 99(15):595~604
Caré, S. / 2004 / Application of an n-phase model of the diffusion coefficient of chloride in mortar / Transport Porous Med. 56(2):119~135
Bolander, J.E. / 1999 / Modeling crack development in reinforced concrete structures under service loading / Constr. Build. Mater. 13(1):23~31
Bolander, J.E. / 2000 / Structural concrete analysis using rigid-body-spring networks / Computer-aided Civ. Infrastruct. Eng. 15(2):120~133
Bolander, J.E. / 2002 / Rigid-body-spring network modeling of prestressed concrete members / ACI Struct. J. 99(15):595~604
Caré, S. / 2004 / Application of an n-phase model of the diffusion coefficient of chloride in mortar / Transport Porous Med. 56(2):119~135
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