THE EFFECT OF CEMENTATION ON THE ELASTIC PROPERTIES OF GRANULAR MATERIAL
THE EFFECT OF CEMENTATION ON THE ELASTIC PROPERTIES OF GRANULAR MATERIAL
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DOI：
10.1016/0167-6636(91)90018-u
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发表时间：
1991-11-01
影响因子：
3.9
通讯作者：
NUR, A
中科院分区：
文献类型：
--
作者：
DVORKIN, J;MAVKO, G;NUR, A
建立了一个简单的分析模型来描述胶结颗粒材料的力学行为。 任意形状水泥层的二维变形问题已化为二阶常微分方程。 一个简单的解析解，得到了直边界的水泥层的法向和剪切变形模型。 本文将两个弹性颗粒和一个弹性水泥层接触的法向压缩问题化为一个线性积分方程。 这个问题已经解决了二维（圆柱形颗粒）和三维（球形颗粒）的情况下。 与经典的Hetzian接触的情况相比，这种组合的弹性模量通过胶结而大大增加。
A simple analytical model is developed to describe the mechanics of cemented granular material. The two-dimensional problem of the deformation of an arbitrarily shaped cement layer has been reduced to an ordinary differential equation of the second order. A simple analytical solution is obtained to model the normal and shear deformation of a cement layer with straight boundaries. The problem of the normal compression of two contacting circular elastic grains and an elastic cement layer between them has been reduced to a linear integral equation. This problem has been solved both for two-dimensional (cylindrical grains) and three-dimensional (spherical grains) cases. The elastic modulus of such a combination is strongly increased by cementation compared to the case of a classic Hetzian contact.