APPLICATIONS OF THE COMBINED FINITE-DISCRETE ELEMENT METHOD
In this paper the so called combined finite-discrete element, FEMDEM, method is summarized.Taking Munjizas original 2D FEMDEM code, Y2D, as published with his book, the authors implement an algorithm to handle sliding friction. The resulting upgrade of Munjizas code which dissipates energy more realistically, known as Yf2D, is applied to a rock slope failure and run-out problem. The Y3D code for 3D FEMDEM is introduced. It is considered to be the first 3D explicit nonlinear structural dynamic multi-body second order code to be released on Open Source. Here, it is used to model a small rock-like boulder packing system. Finally an example of full coupling of CFD and DEM particles colliding in a fluid is also shown. The applications show that the FEMDEM method has the capability to tackle the dynamics of complex-shaped geometries and massive granular systems and that coupling FEMDEM to fluids is a realistic short-term objective.
combined finite-discrete element packing rock slope failure volumetric locking
Jiansheng Xiang John-Paul Latham Antonio Munjiza Julian Mindel
Department of Earth Science and Engineering,Imperial College,London,UK Department of Engineering,Queen Mary London University,London,UK
国际会议
北京
英文
223-231
2008-09-24（万方平台首次上网日期，不代表论文的发表时间）