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Analysis for Cokes Fracture Behavior using Discrete Element Method  

You, Soo-Hyun (Graduate School, Department of Mechanical Design Engineering, Kumoh National Institute of Technology)
Park, Junyoung (Department of Mechanical Design Engineering, Kumoh National Institute of Technology)
Publication Information
Particle and aerosol research / v.8, no.2, 2012 , pp. 75-81 More about this Journal
Abstract
The strength of lumped cokes can be represented by some index numbers. Although some indexes are suggested, these indexes are not enough to enlighten fracture mechanism. To find essential mechanism, a computational way, discrete element method, is applied to the uniaxial compression test for cylindrical specimen. The cylindrical specimen is a kind of lumped particle mass with parallel bonding that will be broken when the normal stress and shear stress is over a critical value. It is revealed that the primary factors for cokes fracture are parallel spring constant, parallel bond strength, bonding radius and packing ratio the parallel bond strength and radius of the parallel combination the packing density. Especially, parallel spring constant is directly related with elastic constant and yield strength.
Keywords
Discrete Element Method; Cokes Fracture; Bonded Particle Model; Parallel Bond Model;
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1 강석호, 류필조, 박준영, 최희규 (2012), "분립체공정공학",홍릉과학출판사
2 Cundall, P.A., Strack, O.D.L., (1979), A discrete numerical model for granular aaassemblies, Geotechnique, 29:47-65
3 Potyondya, D.O., and Cundall, P.A., (2004), A bonded-particle model for rock, International Journal of Rock Mechanics & Mining Sciences 41:1329-1364
4 Yamaoka, H., Suyama, S. K. Nakano (2003), Development of a Size Degradation Model of Coke Particles at the Drum Test and inside the Blast Furnace, The Iron and Steel Institute of Japan International, 43(1):44-53   DOI   ScienceOn
5 Isobe, M. Suzuki, K., Tate, M., Kitagawa, H. (1981), Mechanical Behavior of Coke as a Material with Randomly Distributed Pores, Transactions of the Iron and Steel Institute of Japan, 21(8): 568-576   DOI   ScienceOn
6 Kim, S.Y., and Sasaki, Y., (2010), Simulation of Effect of Pore Structure on Coke Strength Using 3-dimensional Discrete Element Method, The Iron and Steel Institute of Japan International, 50(6):813-821