Structural Engineering and Mechanics

  • 제51권1호
  • /
  • Pages.15-37
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  • 2014
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  • 1225-4568(pISSN)
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  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
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The evaluation with ANSYS of stresses in hazelnut silos using Eurocode 1

  • Kibar, Hakan (Department of Biosystems Engineering, Faculty of Agriculture, Igdir University) ;
  • Ozturk, Turgut (Department of Agricultural Structures and Irrigation, Faculty of Agriculture, Ondokuz Mayis University)
  • 투고 : 2013.09.17
  • 심사 : 2014.04.04
  • 발행 : 2014.07.10
⟨ 이전 논문 다음 논문 ⟩

초록

In this study, the optimum silo dimensions for the barrel-type steel-concentrated silo with a conical outlet port usable in the hazelnut storage were investigated. Three different types of silo models as Model 1 (1635 tons), Model 2 (620 tons) and Model 3 (1124 tons) were used in the study. Varying wall thicknesses were used for Model 1 (10, 11, 12, 13, 14, 15 and 20 mm), Model 2 (10, 15 and 20 mm) and Model 3 (10, 15 and 20 mm) silos. For Model 1 silo has the most storage capacity here, to determine its optimum wall thickness, the wall thicknesses of 11, 12, 13 and 14 mm were used as different from the other models. Thus the stresses occurring in different lines with ANSYS finite element software were examined. In the study it was determined that the 10, 11 and 12 mm wall thicknesses of the Model 1 silo are not safe in terms of the stresses caused by the vertical pressure loads in the filling conditions. From the view of the filling and discharge conditions, other wall thicknesses and model silos were diagnosed to be secure. The optimum silo dimensions which won't cause any structural problems have been found out as the Model 1 silo with a 13 mm wall thickness when the filling capacity and the maximum von Mises stresses are taken into account. This barrel-type silo with conical outlet port sets forth the most convenient properties in hazelnut storing in terms of engineering.

키워드

참고문헌

  1. Ayuga, F., Aguado, P., Gallego, E. and Ramirez, A . (2005), "New steps towards the knowledge of silos behaviour", Int. Agrophysics, 19, 7-17.
  2. Bansal, M.L., Singh, J. and Sharma, V.R. (2009a), "Deflection response at the top of circular steel tall silo in wind environment", Environ. Ecol., 27(4), 1599-1603.
  3. Bansal, M.L., Singh, J. and Sharma, V.R. (2009b), "Deflection behavior at the top of circular steel medium silo in wind environment", Environ. Ecol., 27(4A), 1734-1738.
  4. Briassoulis, D. and Pecknold, D.A. (1986), "Behavior of empty steel grain silos under wind loading 1. The stiffened cylindrical shell", Eng. Struct., 8(4), 260-275. https://doi.org/10.1016/0141-0296(86)90034-9
  5. Brown, C.J. (2008), "Developments in the design of rectangular plan form silos", Proceedings of The International Conference on Structures and Granular Solids: From Scientific Principles to Engineering Applications, The Royal Society of Edinburgh, Scotland, July.
  6. Chou, C.S. and Chang, J.C. (2006), "Theoretical wall stresses and insert loads in a bin-hopper with a conical insert using the differential slice method", Adv. Powder Technol., 17(5), 509-530. https://doi.org/10.1163/156855206778440516
  7. Eurocode 3, (2004), Design of steel structures (EN 1993-1-3), Part 1-3: General Rules- Supplementary Rules for Cold Formed Thin Gauge Members and Sheeting, European Committee for Standardisation, Brussels.
  8. Eurocode 1 (2007a), EN 1991-4, Eurocode 1: Basis of Design and Actions on Structures, Part 4 - Silos and Tanks, European Committee for Standardization, Brussels.
  9. Eurocode 1 (2007b), EN 1993-4-1, Eurocode 3: Design of Steel Structures, Part 4.1: Steel Silos, European Committee for Standardization, Brussels.
  10. Jafari, R. and Hassanian, S. (2010), "Simulation of steel and concrete empty silos behavior under nonuniform wind pressure: finite element approach", International Conference on Agricultural Engineering - AgEng 2010: Towards Environmental Technologies, Clermont-Ferrand, September.
  11. Juan, A., Moran, J.M., Guerra, M.I., Couto, A., Ayuga, F. and Aguado, P.J. (2006), "Establishing stress state of cylindrical metal silos using finite element method: Comparison with ENV 1993", Thin Wall. Struct.,44, 1192-1200. https://doi.org/10.1016/j.tws.2006.09.001
  12. Kibar, H. and O zturk, T. (2009), "The effect of moisture content on the physico-mechanical properties of some hazelnut varieties", J. Stor. Prod. Res. 45(1), 14-18. https://doi.org/10.1016/j.jspr.2008.06.005
  13. Kibar, H. and O zturk, T. (2011), "Optimum silo design with ANSYS program depending on grain properties in Tombul hazelnut storage", Ph.D. Dissertation, Ondokuz Mayis University, Samsun, Turkey.
  14. Kovtun, A.P. and Platonov, P.N. (1959), "Davlenie Zema na stenki silosov elevatorov", MukomoVno Elevatornaia Promyshlenmost Moscow, 25(12), 22-24 (Thompson et al. 1995 were taken from).
  15. MacDonald, P.A., Holmes, J.D. and Kwok, K.C.S. (1990), "Wind loads on circular storage bins, silos and tanks. II. Effect of grouping", J. Wind Eng. Ind. Aerod., 34(1), 77-95. https://doi.org/10.1016/0167-6105(90)90150-B
  16. Mark, J., Holst, F.G., Ooi, J.Y., Rotter, J.M. and Rong, G.H. (1999), "Numerical modeling of silo filling 1: Continuum analysis", J. Eng. Mech., 125(1), 94-103. https://doi.org/10.1061/(ASCE)0733-9399(1999)125:1(94)
  17. Rotter, J.M. (2009), "Silos and tanks in research and practice: state of the art and current challenges", Proceedings of the International Association for Shell and Spatial Structures (IASS) Symposium, Universidad Politecnica de Valencia, September-October.
  18. Tejchman, J. (2002), "Effects of wall inclinations and wall imperfections on pressures during granular flow in silos", Kona, 17, 125-132.
  19. Teng, J.G. and Rotter, J.M. (1991), "Strength of welded steel silo hoppers under filling and flow pressures", J. Struct. Eng., 117(9), 2567-2583. https://doi.org/10.1061/(ASCE)0733-9445(1991)117:9(2567)
  20. Thompson, S.A., Galili, N. and Williams, R.A. (1995), "Lateral pressures during filling of a full-scale grain bin", T. ASAE, 38(3), 919-926. https://doi.org/10.13031/2013.27909
  21. Vidal, P., Guaita, M. and Ayuga, F. (2004), "Simulation of discharging processes in metallic silos", An ASABE Meeting Presentation Paper Number: 044151.
  22. Vidal, P., Guaita, M. and Ayuga, F. (2005), "Analysis of dynamic discharge pressures in cylindrical slender silos with a flat bottom or with a hopper: comparison with Eurocode 1", Biosyst. Eng., 91(3), 335-348. https://doi.org/10.1016/j.biosystemseng.2005.03.012
  23. Vidal, P., Gallego, E., Guaita, M. and Ayuga, F. (2006), "Simulation of the filling pressures of cylindrical steel silos with concentric and eccentric hoppers using 3-dimensional finite element models", T. ASAE, 49(6), 1881-1895.
  24. Wojcik, M., Enstad, G.G. and Jecmenica, M. (2003), "Numerical calculations of wall pressures and stresses in steel cylindrical silos with concentric and eccentric hoppers", Particul. Sci. Technol., 21, 247-258. https://doi.org/10.1080/02726350307486

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