Testing and Analysis of the Shear Modulus of Urea Granules

Abstract : In order to study the interaction between urea and mechanical structure, using direct shear test method, the shear modulus of urea was tested by C-LM4 computer measurement and control shear force measuring instrument. The obtained test curves show that: extrusion makes the binding strength between urea molecules reduce, shear force peak emerge, then decline rapidly; as rolling granules and surrounding granules formed compression and friction resistance in contact surface along the direction of shear, shear force emerges rise again. At the test temperature 22℃, ambient humidity 45%, the density of urea granules 1.33 × 103kg/m3, the values range of shear modulus of urea granules was measured, which was 0.23- 0.3GPa.
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Communication dans un congrès
Daoliang Li; Yingyi Chen. 7th International Conference on Computer and Computing Technologies in Agriculture (CCTA), Sep 2013, Beijing, China. Springer, IFIP Advances in Information and Communication Technology, AICT-419 (Part I), pp.137-144, 2014, Computer and Computing Technologies in Agriculture VII. 〈10.1007/978-3-642-54344-9_17〉
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Jinfeng Wang, Detang Zou, Jinwu Wang, Wei Zhou. Testing and Analysis of the Shear Modulus of Urea Granules. Daoliang Li; Yingyi Chen. 7th International Conference on Computer and Computing Technologies in Agriculture (CCTA), Sep 2013, Beijing, China. Springer, IFIP Advances in Information and Communication Technology, AICT-419 (Part I), pp.137-144, 2014, Computer and Computing Technologies in Agriculture VII. 〈10.1007/978-3-642-54344-9_17〉. 〈hal-01220906〉

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