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基于应力波动的修正非局部流变模型

叶晓燕 王等明 郑晓静

叶晓燕, 王等明, 郑晓静. 基于应力波动的修正非局部流变模型[J]. 力学学报, 2016, 48(1): 40-47. doi: 10.6052/0459-1879-15-287
引用本文: 叶晓燕, 王等明, 郑晓静. 基于应力波动的修正非局部流变模型[J]. 力学学报, 2016, 48(1): 40-47. doi: 10.6052/0459-1879-15-287
Ye Xiaoyan, Wang Dengming, Zheng Xiaojing. A MODIFIED NONLOCAL RHEOLOGY MODEL FOR DENSE GRANULAR FLOW[J]. Chinese Journal of Theoretical and Applied Mechanics, 2016, 48(1): 40-47. doi: 10.6052/0459-1879-15-287
Citation: Ye Xiaoyan, Wang Dengming, Zheng Xiaojing. A MODIFIED NONLOCAL RHEOLOGY MODEL FOR DENSE GRANULAR FLOW[J]. Chinese Journal of Theoretical and Applied Mechanics, 2016, 48(1): 40-47. doi: 10.6052/0459-1879-15-287

基于应力波动的修正非局部流变模型

doi: 10.6052/0459-1879-15-287
基金项目: 国家科技支撑项目(2013BAC07B01),国家自然科学基金(11421062,11572144,11502104,11072097),兰州大学中央高校基本科研业务费专项基金(lzujbky-2015-177),国家教育部科学基金(308022),中国博士后基金(2013M530434)和兰州大学西部灾害与环境力学教育部重点实验室开放基金(201404)资助项目.
详细信息
    通讯作者:

    王等明,博士,副教授,研究方向:颗粒介质力学.E-mail:dmwang@lzu.edu.cn

  • 中图分类号: O371

A MODIFIED NONLOCAL RHEOLOGY MODEL FOR DENSE GRANULAR FLOW

  • 摘要: 基于Pouliquen 提出的非局部流变模型,考虑颗粒流中某个位置重新排列引起的自激发过程,详细分析颗粒介质中应力波动幅值的概率密度分布形式以及剪切速率与体积分数的耦合作用,提出一种修正的非局部流变模型. 采用此修正非局部流变模型对斜面剪切颗粒流的流动特性进行了预测,颗粒流动的临界厚度、平均流动速度及剪切速率廓线的预测结果与实验结果定量吻合. 此修正模型的提出为复杂的密集颗粒流的描述和表征提供了一种新的研究思路.

     

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出版历程
  • 收稿日期:  2015-07-30
  • 修回日期:  2015-08-05
  • 刊出日期:  2016-01-18

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