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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 국제구조공학회 Smart Structures and Systems, An International Journal Smart Structures and Systems, An International Journal Vol.22 No.6
- 발행연도
- 2018.1
- 수록면
- 663 - 673 (11page)
이용수
초록· 키워드
오류제보하기
In this study, the effect of particle size on the cracks propagation and coalescence or cracking pattern of the edge notched disc specimens are investigated. Firstly, calibration of PFC3D was performed using Brazilian experimental test output. Then micro parameters were used to build edge notched disc specimen. The horizontal wall of the assembly is let to move downward with a standard low speed of 0.016 m/s. The numerical results show that the tensile cracks are dominant failure pattern for the modeled discs. These tensile cracks initiate from the pre-existing notch tip and propagate parallel to the loading direction then interact with the upper boundary of the modeled specimen. As the size of the balls (ball diameter) decrease the number of tensile cracks increase. The tensile fracture toughness of the samples also decreases as the particle size increases. Understanding the crack propagation and crack coalescence phenomena in brittle materials such as concretes and rocks is of paramount importance in the stability analyses for engineering structures such as rock slopes, underground structures and tunneling.
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등록된 정보가 없습니다.
참고문헌 (93)
참고문헌 신청
Şeref Doğuşcan Akbaş / 2016 / Analytical solutions for static bending of edge cracked micro beams / Structural Engineering and Mechanics, An Int＇l Journal 59(3):579~599
Aliha, M. R. / 2015 / Determination of mode III fracture toughness for different materials using a new designed test configuration / Mater. Design 86:863~871
Aliha, M. R. / 2015 / Numerical analysis of a new mixed mode I/III fracture test specimen / Eng. Fract. Mech 134:95~110
Amrollahi, H. / 2011 / Measuring fracture toughness of crystalline marbles under modes I and II and mixed mode I-II loading conditions using CCNBD and HCCD specimens / J. Rock Mech. Min. Sci 48(7):1123~1134
Atkinson, B. K. / 1987 / Fracture Mechanics of Rock / Academic Press
Aliha, M. R. / 2015 / Determination of mode III fracture toughness for different materials using a new designed test configuration / Mater. Design 86:863~871
Aliha, M. R. / 2015 / Numerical analysis of a new mixed mode I/III fracture test specimen / Eng. Fract. Mech 134:95~110
Amrollahi, H. / 2011 / Measuring fracture toughness of crystalline marbles under modes I and II and mixed mode I-II loading conditions using CCNBD and HCCD specimens / J. Rock Mech. Min. Sci 48(7):1123~1134
Atkinson, B. K. / 1987 / Fracture Mechanics of Rock / Academic Press
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