The 2 - d and 3 - d dem codes are developed using c - h - programming language based on the idea of ooa ( object oriented analysis ) . a set of preprocess and postprocess code for the dem is also developed . the two codes in one become an integrative discrete element analysis system : s - dem ( super - discrete element method ) 该计算程序与用opengl技术在vc + + 6 . 0环境下开发的功能强大的离散元前后处理程序构成了较为完整的离散元分析模拟系统s - dem ( super - discreteelementmethod ) 。
In this paper , nonlinear behavior of reinforcement concrete combined torsion members subjected to axial compression , bending moment , shear and torsion is analyzed and researched with nonlinear finite element method . concrete has been modeled using eight - node hexahedral isoperimetric element and reinforcement element are divided into two cases . longitudinal reinforcement has been modeled with discrete element and stirrup has been modeled with smeared element 在建立钢筋混凝土的有限元模型时,混凝土采用的单元为八节点六面体等参单元,钢筋单元分为两种情况,纵向钢筋采用分离式钢筋单元,箍筋采用埋藏式钢筋单元,即箍筋作为附着在混凝土等参数单元内或单元上的“膜单元” 。
While studying the flow course of granular materials and the interactions among granular materials and working parts of agricultural machinery based on the discrete element method ( dem ) , a general method was presented to establish the dem analyzing model of agricultural machine ' s working parts based on their cad model 摘要采用离散元法研究了散粒物料之间、散粒物料与农业机械工作部件之间的相互作用以及散粒物料的流动过程,提出了由农业机械工作部件计算机辅助设计模型建立其离散元法分析模型的方法。