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玉米堆摩擦角的测定与研究
引用本文:唐福元,严晓婕,冯家畅,程绪铎. 玉米堆摩擦角的测定与研究[J]. 粮食储藏, 2014, 0(3): 39-42
作者姓名:唐福元  严晓婕  冯家畅  程绪铎
作者单位:南京财经大学食品科学与工程学院,210003
基金项目:江苏省农业科技自主创新资金项目(CX(13)4021)
摘    要:利用直剪仪对玉米(水分率为11.05%、12.34%、16.72%、17.57%w.b)的内摩擦角进行了实验测定与分析。结果表明:玉米的内摩擦角变化范围是22.81°~35.20°,玉米的内摩擦角随剪切速度的增加而减小,随法向压应力的增加而减小,随水分的增加而增加。

关 键 词:玉米堆  内摩擦角  剪切速度  法向压应力  含水率

EXPERIMENTAL RESEARCH ON THE ANGLE OF INTERNAL FRICTION OF CORN PILE
Tang Fuyuan Yan Xaojie Feng Jiachang Cheng Xuduo. EXPERIMENTAL RESEARCH ON THE ANGLE OF INTERNAL FRICTION OF CORN PILE[J]. www.ysfri.ac.cn, 2014, 0(3): 39-42
Authors:Tang Fuyuan Yan Xaojie Feng Jiachang Cheng Xuduo
Affiliation:Tang Fuyuan Yan Xaojie Feng Jiachang Cheng Xuduo (College of Food Science and Engineering, Nanjing University of Finance and Economics 210003)
Abstract:In this paper, the angle of internal friction of corn pile (They are produced in Nanjing in 2013. The moisture contents are 11.05%, 12.34%, 16.72% and 17.57% w. b) were measured and analyzed. The experimental results showed that the angle of internal friction of corn pile range from 22.81° to 35.20°, the angle of internal friction of corn pile decrease with the increase of normal stress and shear velocity, but in- crease with moisture content increasing.
Keywords:corn pile   angle of internal friction   shear velocity   normal stress   moisture content
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