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W pracy badano wpływ wilgotności i gęstości upakowania ziarna pszenicy na dokładność pomiaru kąta tarcia wewnętrznego. Testy trójosiowego ściskania przeprowadzono dla próbek o średnicy 15cm i wysokości 30 cm dla sześciu różnych wilgotności ziarna w przedziale od 10,0% do 22,3%. oraz różnych gęstości. Materiał próbki zagęszczano wibracyjnie. Stwierdzono, że pomiar kąta tarcia wewnętrznego jest możliwy...
All phases of particulate material industry, namely, storage, handling and processing are operations that require precise knowledge of the behaviour of the material to achieve the desired control.External and internal friction of particulate material greatly influence its mechanical behaviour.A lot of work was done on agricultural grain since 1960`s. This work summarizes the methods and results of...
To describe mechanical behaviour of a granular material it is indispensable to have parameters such as the coefficient of friction on a bin wall, the angle of internal friction and the bulk density and the k-value in Janssen's equation. The values of these parameters depend on many known and unknown factors. In the case of plant granular solids indisputable is the role of moisture content of grain,...
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