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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.26 No.6
- 발행연도
- 2020.1
- 수록면
- 565 - 576 (12page)
이용수
초록· 키워드
오류제보하기
Experimental and discrete element methods were used to investigate the effects of angle of Y shape non-persistent joint on the tensile behaviour of joint’s bridge area under brazilian test. concrete samples with diameter of 100 mm and thikness of 40 mm were prepared. Within the specimen, two Y shape non-persistent notches were provided. The large notch lengths were 6 cm, 4 cm and 2 cm. the small notch lengths were 3 cm, 2 cm and 1 cm. The angle of larger notch related to horizontal axis was 0°, 30°, 60°, 90°. Totally, 12 different configuration systems were prepared for Y shape non-persistent joints. Also, 18 models with different Y shape non-persistent notch angle and notch length were prepared in numerical model. The large notch lengths were 6 cm, 4 cm and 2 cm. the small notch lengths were 3 cm, 2 cm and 1 cm. The angle of larger notch related to horizontal axis was 0, 30, 60, 90, 120 and 150. Tensile strength of model materil was 1 MPa. The axial load was applied to the model by rate of 0.02 mm/sec. This testing showed that the failure process was mostly governed by the Y shape non-persistent joint angle and joint length. The tensile strengths of the specimens were related to the fracture pattern and failure mechanism of the discontinuities. It was shown that the tensile behaviour of discontinuities is related to the number of the induced tensile cracks which are increased by increasing the joint length and joint angle. The minimum tensile strength occurs when the angle of larger joint related to horizontal axis was 60°. Also, the maximum compressive strength occurs when the angle of larger joint related to horizontal axis was 90°. The tensile strength was decreased by increasing the notch length. The failure pattern and failure strength are similar in both methods i.e. the experimental testing and the numerical simulation methods.
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참고문헌 (38)
참고문헌 신청
Gökhan Adıyaman / 2016 / A receding contact problem between a functionally graded layer and two homogeneous quarter planes / Acta Mechanica 227(6):1753~1766
Lekan Olatayo Afolagboye / 2017 / Crack Initiation and Coalescence Behavior of Two Non-parallel Flaws / Geotechnical and Geological Engineering 36(1):105~133
Mostafa Asadizadeh / 2019 / Mechanical characterisation of jointed rock-like material with non-persistent rough joints subjected to uniaxial compression / Engineering Geology 260:105224
A. Bobet / 1998 / Fracture coalescence in rock-type materials under uniaxial and biaxial compression / International Journal of Rock Mechanics and Mining Sciences 35(7):863~888
Z. Brooks / 2013 / Environmental scanning electron microscopy (ESEM) and nanoindentation investigation of the crack tip process zone in marble / Acta Geotechnica 8(3):223~245
Lekan Olatayo Afolagboye / 2017 / Crack Initiation and Coalescence Behavior of Two Non-parallel Flaws / Geotechnical and Geological Engineering 36(1):105~133
Mostafa Asadizadeh / 2019 / Mechanical characterisation of jointed rock-like material with non-persistent rough joints subjected to uniaxial compression / Engineering Geology 260:105224
A. Bobet / 1998 / Fracture coalescence in rock-type materials under uniaxial and biaxial compression / International Journal of Rock Mechanics and Mining Sciences 35(7):863~888
Z. Brooks / 2013 / Environmental scanning electron microscopy (ESEM) and nanoindentation investigation of the crack tip process zone in marble / Acta Geotechnica 8(3):223~245
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