Particle and aerosol research (한국입자에어로졸학회지)

Korean Association for Particle and Aerosol Research (한국입자에어로졸학회)
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Analysis for Cokes Fracture Behavior using Discrete Element Method

이산요소법을 이용한 코크스 분화 거동 해석

  • 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)
  • 유수현 (금오공과대학교 기계설계공학과 대학원) ;
  • 박준영 (금오공과대학교 기계설계공학과)
  • Published : 2012.06.30
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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

References

  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 https://doi.org/10.2355/isijinternational.43.44
  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 https://doi.org/10.2355/isijinternational1966.21.568
  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