Resolution of Different Length Scales by an Efficient Combination of the Finite Element Method and the Discrete Element Method

2012 ◽  
Author(s):  
M. Michael ◽  
B. Peters ◽  
F. Vogel
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Discrete Element Method ◽  
Discrete Element ◽  
The Finite Element Method ◽  
Length Scales ◽  
Element Method

scholarly journals Approche couplée éléments discrets/finis pour la simulation d’un impact sur ouvrage

2007 ◽  
pp. 989-1009
Author(s):  
Emmanuel Frangin ◽  
Philippe Marin ◽  
Laurent Daudeville
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Discrete Element Method ◽  
Dynamic Loading ◽  
Concrete Slab ◽  
Discrete Element ◽  
The Finite Element Method ◽  
Large Structure ◽  
Wave Reflections ◽  
Element Method

The paper deals with combined finite/discrete element method to study structures under severe dynamic loading, like impact. The discrete element method take naturally into account the non linear phenomena, it is used in the vicinity of the impacted zone. The finite element method is used to reduce the time of computation in order to carry out large structure analyses. The aim of the paper is to discuss the way to reduce non physical wave reflections; it presents an application on a rock impact on a concrete slab.

scholarly journals Coupling Simulation Algorithm of Discrete Element Method and Finite Element Method for Particle Damper

2009 ◽  
Vol 28 (3) ◽  
pp. 197-204 ◽  
Author(s):  
Zhaowang Xia ◽  
Xiandong Liu ◽  
Yingchun Shan ◽  
Xinghu Li
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Discrete Element Method ◽  
Particle Density ◽  
Discrete Element ◽  
Experimental Results ◽  
Theoretical Research ◽  
Simulation Algorithm ◽  
Cantilever Plate ◽  
Element Method

One advantage of the particle damper is that its property is independent of the surrounding temperature. This allows it to be used in harsh environments where traditional dampers fail. But current design of this damper mainly depends on experimental results because of a lack of theoretical research. In this paper, an investigation into particle dampers is performed analytically and experimentally. A coupling simulation algorithm based on the discrete element method and finite element method is presented. Comparison between the analytical and experimental results shows that simulation of the response of a cantilever plate with a particle damper is accurate. It is shown that the response of the cantilever plate depends on the mass-fill ratio and particle density of the particle damper.

Numerical analysis on tractive performance of off-road tire on gravel road using a calibrated finite element method–discrete element method model and experimental validation

2020 ◽  
Vol 234 (14) ◽  
pp. 3440-3457
Author(s):  
Weipan Xu ◽  
Haiyang Zeng ◽  
Peng Yang ◽  
Mengyan Zang
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Discrete Element Method ◽  
Triaxial Compression ◽  
Element Model ◽  
Discrete Element ◽  
Wheel Load ◽  
Method Model ◽  
Gravel Road ◽  
Element Method

The interaction between off-road tires and granular terrain has a great influence on the tractive performance of off-road vehicles. However, the finite element method or the discrete element method cannot effectively study the interaction between off-road tires and granular terrain. The three-dimensional combined finite element and discrete element method is applied to handle this problem. In this study, a calibrated finite element method–discrete element method model is established, in which the finite element model of off-road tire is validated by stiffness tests, while the discrete element model of gravel particles is validated by triaxial compression tests. The calibrated finite element method–discrete element method model can describe the structural mechanics of the off-road tire and the macroscopic mechanical properties of the gravel road. Tractive performance simulations of the off-road tire on gravel road under different slip conditions are performed with the commercial software LS-DYNA. The simulation results are basically corresponded with the soil-bin test results in terms of granular terrain deformation and tractive performance parameters versus the slip rates. Finally, the effects of tread pattern, wheel load, and tire inflation pressure on tractive performance of off-road tire on granular terrain are investigated. It indicates that the calibrated finite element method–discrete element method can be an effective tool for studying the tire–granular terrain interaction and predicting the tractive performance of off-road tire on granular terrain.

Simulation of tuning graphene plasmonic behaviors by ferroelectric domains for self-driven infrared photodetector applications

Nanoscale ◽  
2019 ◽  
Vol 11 (43) ◽  
pp. 20868-20875 ◽  
Author(s):  
Junxiong Guo ◽  
Yu Liu ◽  
Yuan Lin ◽  
Yu Tian ◽  
Jinxing Zhang ◽  
...  
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Interfacial Effect ◽  
Infrared Photodetector ◽  
The Finite Element Method ◽  
Ferroelectric Domains ◽  
Element Method

We propose a graphene plasmonic infrared photodetector tuned by ferroelectric domains and investigate the interfacial effect using the finite element method.

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