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方图南, 吴湘萍. 浓悬浮体的屈服应力和最大填充率[J]. 力学学报, 1996, 28(4): 400-405. DOI: 10.6052/0459-1879-1996-4-1995-348
引用本文: 方图南, 吴湘萍. 浓悬浮体的屈服应力和最大填充率[J]. 力学学报, 1996, 28(4): 400-405. DOI: 10.6052/0459-1879-1996-4-1995-348
THE MAXIMUM PACKING FRACTION AND YIELD STRESS OF CONCENTRATED SUSPENSIONS[J]. Chinese Journal of Theoretical and Applied Mechanics, 1996, 28(4): 400-405. DOI: 10.6052/0459-1879-1996-4-1995-348
Citation: THE MAXIMUM PACKING FRACTION AND YIELD STRESS OF CONCENTRATED SUSPENSIONS[J]. Chinese Journal of Theoretical and Applied Mechanics, 1996, 28(4): 400-405. DOI: 10.6052/0459-1879-1996-4-1995-348

浓悬浮体的屈服应力和最大填充率

THE MAXIMUM PACKING FRACTION AND YIELD STRESS OF CONCENTRATED SUSPENSIONS

  • 摘要: 对剪切稀化的浓悬浮体,假设在剪切状态下结构参数变化的速率服从一级动力学关系,在此基础上导出浓悬浮体最大填充率与剪应力、屈服应力与填充率之间关系的数学模型.用硅粉-甘油水溶液及可可粉-可可脂两种悬浮体的实验确认了模型对工业微米级颗粒悬浮体的适用性

     

    Abstract: A mathematic model is proposed to discribe the shear dependence of maximum packing fraction and the relationship between volume fraction and yield stress. The experimental data for cocoa/fat suspension and silica/glycerine water suspensionverified the model.

     

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