지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Steel and Composite Structures, An International Journal Steel and Composite Structures, An International Journal Vol.46 No.1
- 발행연도
- 2023.1
- 수록면
- 53 - 73 (21page)
이용수
초록· 키워드
오류제보하기
Man-made structure materials like concrete usually contain inclusions. These inclusions affect the mechanical properties of concrete. In this investigation, the influence of inclusion length and inclination angle on three-dimensional failure mechanism of concrete under uniaxial compression were performed using experimental test and numerical simulation. Approach of acoustic emission were jointly used to analyze the damage and fracture process. Besides, by combining the stress–strain behavior, quantitative determination of the thresholds of crack stress were done. concrete specimens with dimensions of 120 mm × 150 mm × 100 mm were provided. One and two holes filled by gypsum are incorporated in concrete samples. To build the inclusion, firstly cylinder steel tube was pre-inserting into the concrete and removing them after the initial hardening of the specimen. Secondly, the gypsum was poured into the holes. Tensile strengths of concrete and gypsum were 2.45 MPa and 1.5 MPa, respectively. The angle bertween inclusions and axial loadind ary from 0 to 90 with increases of 30. The length of inclusion vary from 25 mm to 100 mm with increases of 25 mm. Diameter of the hole was 20 mm. Entirely 20 various models were examined under uniaxial test. Simultaneous with experimental tests, numerical simulation (Particle flow code in two dimension) were carried out on the numerical models containing the inclusions. The numerical model were calibrated firstly by experimental outputs and then failure behavior of models containing inclusions have been investigated. The angle bertween inclusions and axial loadind vary from 0 to 90 with increases of 15. The length of inclusion vary from 25 mm to 100 mm with increases of 25 mm. Entirely 32 various models were examined under uniaxial test. Loading rate was 0.05 mm/sec. The results indicated that when inclusion has occupied 100% of sample thickness, two tensile cracks originated from boundaries of sample and spread parallel to the loading direction until being integrated together. When inclusion has occupied 75% of sample thickness, four tensile cracks originated from boundaries of sample and spread parallel to the loading direction until being integrated together. When inclusions have occupied 50% and 25% of sample thickness, four tensile cracks originated from boundaries of sample and spread parallel to the loading direction until being integrated together. Also the inclusion was failed by one tensile crack. The compressive strength of samples decease with the decreases of the inclusions length, and inclusion angle had some effects on that. Failure of concrete is mostly due to the tensile crack. The behavior of crack, was affected by the inclusion length and inclusion number.
목차
등록된 정보가 없습니다.
참고문헌 (0)
참고문헌 신청함께 읽어보면 좋을 논문
논문 유사도에 따라 DBpia 가 추천하는 논문입니다. 함께 보면 좋을 연관 논문을 확인해보세요!
-
Study on dynamic interaction between crack and inclusion or void by using XFEM
Structural engineering and mechanics : An international journal
2017 .01
-
Nature of non-metallic Inclusions in an electro-gas weld metal
대한용접학회 특별강연 및 학술발표대회 개요집
2021 .05
-
Study on shear fracture behavior of soft filling in concrete specimens: Experimental tests and numerical simulation
Structural Engineering and Mechanics, An Int＇l Journal
2023 .02
-
Investigation of the effects of particle size and model scale on the UCS and shear strength of concrete using PFC2D
Structural Engineering and Mechanics, An Int＇l Journal
2018 .01
-
Experimental and numerical simulating of the crack separation on the tensile strength of concrete
Structural Engineering and Mechanics, An Int＇l Journal
2018 .01
-
Experimental and numerical simulating of the crack separation on the tensile strength of concrete
Structural engineering and mechanics : An international journal
2018 .01
-
Fracture behavior modeling of a 3D crack emanated from bony inclusion in the cement PMMA of total hip replacement
Structural engineering and mechanics : An international journal
2018 .01
-
Numerical modeless of the damage, around inclusion in the orthopedic cement PMMA
Structural engineering and mechanics : An international journal
2016 .01
-
사회적 배제를 중심으로 경제적 포용성과 사회주택의 연계성에 관한 연구
대한건축학회연합논문집
2021 .01
-
Investigation of the model scale and particle size effects on the point load index and tensile strength of concrete using particle flow code
Structural Engineering and Mechanics, An Int＇l Journal
2018 .01
-
인공지반용 콘크리트의 진동균열 및 균열회복 특성에 관한 연구
대한건축학회연합논문집
2019 .01
-
Experimental and numerical investigation of the effect of bridge area and its angularities on the failure mechanism of non-persistent crack in concrete-like materials
Smart Structures and Systems, An International Journal
2021 .01
-
Investigation of the model scale and particle size effects on the point load index and tensile strength of concrete using particle flow code
Structural engineering and mechanics : An international journal
2018 .01
-
Experimental and Numerical Investigations on Crack Intersection and Propagation of Concrete Structures
International Journal of Concrete Structures and Materials
2023 .03
-
A study on effects of water-cement ratio and crack width on chloride ion transmission rate in concrete
Computers and Concrete, An International Journal
2017 .01
-
Mechanism of failure in the Semi-Circular Bend (SCB) specimen of gypsum-concrete with an edge notch
Structural Engineering and Mechanics, An Int＇l Journal
2022 .01
-
고강도 FCA 용착금속의 개재물이 저온균열에 미치는 영향
대한용접학회 특별강연 및 학술발표대회 개요집
2015 .05
-
Shear behavior of non-persistent joints in concrete and gypsum specimens using combined experimental and numerical approaches
Structural Engineering and Mechanics, An Int＇l Journal
2019 .01
-
발전소용 이중보온용 강관의 홈부식(Grooving Corrosion)에 의한 파손 분석
신뢰성응용연구
2015 .09
이 논문의 저자 정보
최근 본 자료
댓글(0)
0