The basic principles of DEM(discrete element model), and the equations of particle motion and models of particle particle interaction are introduced.
介绍了离散元（DEM）方法的基本原理、颗粒运动控制方程和颗粒相互作用力的数学模型。
By establishing the discrete element model of loose object and using ALE coupling algorithm, the simulation of loose medium's casting blast process is performed.
通过建立松散体离散单元模型，采用ALE耦合算法，模拟了松散介质坍塌堆积物的抛掷爆破过程。
The failure criterion, formula and determination of analytical parameters such as spring modulus of the discrete element model for concrete material were presented.
介绍了适于混凝土材料的离散单元模型的破坏准则、计算方程以及弹簧系数等计算参数的确定方法。
The authors built a discrete element model to simulate the evolution of fault system above active salt domes, and further discussed the influence of rock strength on fault patterns.
作者通过构建离散元模型，模拟主动底辟盐构造断裂系统的演化过程，并进一步讨论了岩性强弱对于主动底劈盐构造断层系统分布模式的影响。
In this paper, a discrete element model for collapse simulation of frame structures is developed. The failure criterion and determination of analytical parameters such as damping are also studied.
本文建立了适合框架结构倒塌分析的离散单元模型，并且研究了模型的破坏准则、阻尼等参数确定方法。
The equivalent discrete element model of the conditioned sands is provided, on the basis of which the DEM numerical model of the slump test and the shear test of the conditioned sands are established.
提出了改性砂土的等效离散元模型，在此基础上建立改性砂土坍落度实验和直剪实验的离散元数值实验模型。
The equivalent discrete element model of the conditioned sands is provided, on the basis of which the DEM numerical model of the slump test and the shear test of the conditioned sands are established.
提出了改性砂土的等效离散元模型，在此基础上建立改性砂土坍落度实验和直剪实验的离散元数值实验模型。
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