Influence of moisture content on pressure ratio of rape seeds
2004
Rusinek, R. | Lukaszuk, J. (Polish Academy of Sciences. Lublin (Poland). Inst. of Agrophysics)
The pressure ratio of rapeseeds was determined for four levels of moisture content in a model silo (0.6 m in diameter, 0.6 m high). Ratio of horizontal to vertical pressure and distributions of local horizontal to vertical pressure along the radius of the floor in the model silo were determined for loading and unloading cycles simulating real conditions observed in the silo (in a range of 0-13 kPa). The sample was poured into the model silo through centrally located spout, without vibration or other compacting actions. The pressure ratio generally decreased with the increase of moisture content. Experimental results were compared with simplified approximation recommended by the Eurocode 1 (2003) and theoretical values obtained for active and passive stress case.
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