Smart Structures and Systems
Volume 22, Number 6, 2018, pages 643-662
DOI: 10.12989/sss.2018.22.6.643
The effect of micro parameters of PFC software on the model calibration
M.R. Ajamzadeh , Vahab Sarfarazi , Hadi Haeri , H. Dehghani
Abstract
One of the methods for investigation of mechanical behavior of materials is numerical simulation. For simulation, its need to model behavior is close to real condition. PFC is one of the rock mechanics software that needs calibration for models simulation. The calibration was performed based on simulation of unconfined compression test and Brazilian test. Indeed the micro parameter of models change so that the UCS and Brazilian test results in numerical simulation be close to experimental one. In this paper, the effect of four micro parameters has been investigated on the uniaxial compression test and Brazilian test. These micro parameters are friction angle, Accumulation factor, expansion coefficient and disc distance. The results show that these micro parameters affect the failure pattern in UCS and Brazilian test. Also compressive strength and tensile strength are controlled by failure pattern.
Key Words
PFC2D; friction angle; accumulation factor; expansion coefficient and disc distance
Address
- M.R. Ajamzadeh and 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
- H. Dehghani — Academic Member, Hamedan University of Technology, Hamedan, Iran
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