| 基于颗粒物质流体动力学的三轴力学分析 |
| |
| 引用本文： | 孙其诚,宋世雄,蒋亦民,金峰,张楚汉.基于颗粒物质流体动力学的三轴力学分析[J].力学学报,2012,44(2):447-450. |
| |
| 作者姓名： | 孙其诚 宋世雄 蒋亦民 金峰 张楚汉 |
| |
| 作者单位： | 1. 清华大学水沙科学与水利水电工程国家重点实验室, 北京 100084;2. 中南大学物理系, 长沙 410083 |
| |
| 基金项目： | 国家重点基础研究发展规划，国家自然科学基金，清华大学水沙科学与水利水电工程国家重点实验室 |
| |
| 摘 要： | 构建了颗粒体系热力学特征函数, 确定了宏观尺度不可逆过程的迁移系数, 将颗粒物质流体动力学理论应用于密砂的三轴加载力学性质分析, 得到了应力-应变关系和体积应变-应变关系, 还得到了颗粒温度演化过程.
|
| 关 键 词： | 颗粒物质 非平衡态热力学 GSH理论 |
| 收稿时间： | 2011-06-14 |
| 修稿时间： | 2011-10-28 |
GRANULAR SOLID HYDRODYNAMICS AND ANALYSES ON TRIAXIAL COMPRESSIONS |
| |
| Sun Qicheng,Song Shixiong Jiang Yimin Jin Feng Zhang Chuhan.GRANULAR SOLID HYDRODYNAMICS AND ANALYSES ON TRIAXIAL COMPRESSIONS[J].chinese journal of theoretical and applied mechanics,2012,44(2):447-450. |
| |
| Authors: | Sun Qicheng Song Shixiong Jiang Yimin Jin Feng Zhang Chuhan |
| |
| Institution: | 1. State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China;2. Physics Department, Central South University, Changsha 410083, China |
| |
| Abstract: | Hydrodynamics theory was originally developed Newtonian fluids.The theory combines mass, energy,moment,entropy flow and dissipation flows in Onsager relations.As an extension to granular materials, granular solid hydrodynamics(GSH) constructs a thermodynamics function and a series of transport coefficients for irreversible processes in granular matter.In this paper,GSH is used to analyze mechanical properties of dry sands under triaxial compressions.The stress-strain relations and volumetric strain-axial strain relations are obtained,which are of great engineering concerns.The evolution of granular temperature is studied as well. |
| |
| Keywords: | granular materials non-equilibrium thermodynamics GSH theory |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《力学学报》浏览原始摘要信息 |
| 点击此处可从《力学学报》下载免费的PDF全文 |
|
