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 discrete element method (DEM) is introduced, which includes hard sphere model and soft sphere model.
着重介绍了非连续介质模型中的离散元法(dem)：硬球模型和软球模型。
The PFC numerical simulations (Discrete Element Method) were carried out on the base of the results of model test.
在室内模型试验的基础上对加筋路堤进行了颗粒流离散元模拟分析。
The volume element model is composed of blocks, in which the interfaces between blocks represent by continuous function or interpolation at discrete points.
体元模型由块体组成，块体之间界面采用连续函数或离散点插值表示。
This paper introduced the discrete Element Method which was used in rock mechanics into the research of polymer extruder's solid-conveying zone, and set up a discrete transport model.
将岩石力学中的研究方法———离散单元法引入塑料挤出固体输送研究中，并建立了固体输送段的离散输送模型。
For dynamics modeling of 3d fluid-solids two-phase flows in engineering problem it was brought forward of particles trajectory flexible model based on the discrete element method (DEM).
为解决工程应用中三维流固两相流动力学建模的难题，提出了基于离散单元法(dem)的颗粒群轨道柔性模型。
For analyzing the influence of aggregate gradation on the concrete behavior, the grain-spring model of discrete element method is presented.
分析的具体行为的影响骨料级配，颗粒-弹簧模型离散元方法。
This numerical method used simulating damage and fragmentation phenomena of rock-like materials is presented on the basis of discrete element method (DEM) and lattice model.
梁–颗粒模型是在离散单元法基础上，结合有限单元法提出的用于模拟岩石类材料破坏过程的数值模型。
Let the discrete element method (DEM) be developed into the numerical simulation of 3d fluid-solid two-phased flows, the trajectory flexible model of particle group has been put forward.
将离散单元法(DEM)拓展到三维流固两相流的数值模拟中，提出了颗粒群轨道柔性模型。
This thesis introduces three kinds of reinforced concrete finite element method model which are assembled model, smeared model and discrete model.
本文分析了三种钢筋混凝土有限元模型：组合式模型、整体式模型和分离式模型。
This paper uses the combined finite-discrete element method with smeared rotating crack model to analyze the seismic rupture process simulation of concrete gravity dam under the action of earthquake.
应用联合有限-离散元法结合弥散式旋转裂缝模型分析了地震作用下混凝土重力坝动力破坏过程。
A discrete crack model based on the extended finite element method (XFEM) was used to describe the nonlinear fracture of concrete gravity DAMS during earthquakes.
为了模拟重力坝在强震作用下的破坏过程，利用扩展有限元框架下的分离裂纹模型描述混凝土中的裂纹扩展。
The calculated method of crack extension of arch DAMS is proposed using this strength criterion and finite element discrete crack model, and with some practical examples given.
运用上述强度准则及有限元分离裂缝模型提出了拱坝开裂的计算方法，并给出了应用实例。
In this paper, the contact search for blocks of discrete element method is studied and a new bolt model is given.
本文对其接触状态的检索进行了探讨，并提出了新锚杆模型。
The inversion method combining the genetic neural network and the discrete element simulation of triaxial tests is proposed for determining the contact model parameters of the conditioned soil.
将神经网络、遗传算法、三轴实验和离散元数值模拟相结合，用于改性砂土等效离散元接触模型参数反演。
The inversion method combining the genetic neural network and the discrete element simulation of triaxial tests is proposed for determining the contact model parameters of the conditioned soil.
将神经网络、遗传算法、三轴实验和离散元数值模拟相结合，用于改性砂土等效离散元接触模型参数反演。
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