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Structural Engineering and Mechanics Volume 69, Number 1, January10 2019 , pages 51-67 DOI: https://doi.org/10.12989/sem.2019.69.1.051 |
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Simulation of the tensile behaviour of layered anisotropy rocks consisting internal notch |
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Vahab Sarfarazi, Hadi Haeri, P. Ebneabbasi and Kourosh Bagheri
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| Abstract | ||
| In this paper, the anisotropy of tensile behaviours of layered rocks consisting internal notch has been investigated using particle flow code. For this purpose, firstly calibration of PFC2D was performed using Brazilian tensile strength. Secondly Brazilian test models consisting bedding layer was simulated numerically. Thickness of layers was 10 mm and layered angularity was 90o, 75o, 60o, 45o, 30o, 15o and 0o. The strength of bedding interface was too high. Each model was consisted of one internal notch. Notch length is 1 cm, 2 cm and 4 cm and notch angularities are 60o, 45, 30o, 15o and 0o. Totally, 90 model were tested. The results show that failure pattern was affected by notch orientation and notch length. It's to be noted that layer angle has not any effect on the failure pattern. Also, Brazilian tensile strength is affected by notch orientation and notch length. | ||
| Key Words | ||
| notch; bedding layer; anisotropy; crack; Brazilian test; PFC2D | ||
| Address | ||
| Vahab Sarfarazi: Department of Mining Engineering, Hamedan University of Technology, Hamedan, Iran Hadi Haeri: Young Researchers and Elite Club, Bafgh Branch, Islamic Azad University, Bafgh, Iran P. Ebneabbasi: Civil Engineering Department, Islamic Azad University, Hamedan, Iran Kourosh Bagheri: Department of Civil Engineering, Malard Branch, Islamic Azad University, Malard, Iran | ||