Numerical and Experimental Study of Stress-Strain Behavior of Granular Soils using Random Arrays of Elastic Ellipsoids

该项目是一个合作的努力， 新墨西哥州（T. T.博士）Ng）和伦斯勒理工学院（Rennselaer Polytechnic） 研究所（博士多布里），其中的目标是使用两个- 和三维随机阵列的弹性粗糙 均匀沙的计算机模拟用椭球体。 对各种菌株进行良好的定量预测， 排水和不排水荷载，静态和循环荷载 可以从这些阵列研究负载。微机械 在粒子/接触处发生的现象的统计 水平将从数值模拟中获得。 单调和循环实验室轴向/扭转试验 球形和细长形的空心圆柱体样本 玻璃珠以及沙子将做验证 数值模拟

This project is a cooperative effort between University of New Mexico (Dr. T.T. Ng) and Rennselaer Polytechnic Institute (Dr. Dobry) in which the objective is to use two- and three- dimensional random arrays of elastic rough quart ellipsoids for computer simulations of uniform sands. Good quantitative predictions for a wide range of strains, drained and undrained loading, and static as well as cyclic loading can be studied from these arrays. Micromechanical statistics of phenomena occurring at the particle/contact level will be obtained from the numerical simulations. Monotonic and cyclic laboratory axial/torsional tests on hollow cylindrical specimens of spherical and elongated glass beads as well as on sand will be done to verify numerical simulations.