<i>A New Method of Quantifying Discrete Element Method Predicted Furrow Profiles of Narrow Point Openers</i>

Abstract. The search of improvement of protective techniques against natural phenomena such as snow avalanches continues to use classic methods for calculating flexible structures. This paper deals with a new method to design avalanche protection nets. This method is based on a coupled analysis of both net structure and snow mantle by using a Discrete Element Method. This has led to the development of computational software so that avalanche nets can be easily designed. This tool gives the evolution of the forces acting in several parts of the work as a function of the snow situation.

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A new method to simulate irregular particles by discrete element method

Journal of Rock Mechanics and Geotechnical Engineering ◽

10.3724/sp.j.1235.2012.00276 ◽

2012 ◽

Vol 4 (3) ◽

pp. 276-281 ◽

Cited By ~ 17

Author(s):

Rui Gao ◽

Xin Du ◽

Yawu Zeng ◽

Yong Li ◽

Jing Yan

Keyword(s):

Discrete Element Method ◽

Discrete Element ◽

New Method ◽

Element Method

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Random Adjusted Calculation Method for 3D Aggregate of Concrete

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.168-170.13 ◽

2010 ◽

Vol 168-170 ◽

pp. 13-16

Author(s):

Yin Xu ◽

Sheng Hong Chen

Keyword(s):

Discrete Element Method ◽

Calculation Method ◽

Discrete Element ◽

New Method ◽

Computational Time ◽

Concrete Aggregate ◽

Analysis Tool ◽

Advantages And Disadvantages ◽

Element Method

Discrete element method is emerging as a useful numerical analysis tool for engineers interested in granular materials such as soil, concrete, or pharmaceutical powders. Simulated the concrete’s microscopic property and its impact on the macroscopic property by using particle discrete element method is one of the important research topics. Obviously, the first step in a discrete element simulation is the generation of the geometry of the system concerned, the quality of which will directly decide the quality of the simulation result. An integrated approach termed random adjusted calculation method is proposed in this paper after detailed analysis of the advantages and disadvantages of the existing aggregate delivery methods. The new method is a method which combined both the advantages of random method and non-geometry methods, such as hopper method and explosive repulsion method. Through out the analysis of the basic process of aggregate delivery and indicated by the result of the examples, random adjusted calculation method has the advantages of good overall density and easily controlled grading; and the computational time is smaller than the existing methods of non-geometry aggregate delivery; furthermore, the new method is easily carried out and provides a new idea for the delivery of concrete aggregate.

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A Study on Boundary Modeling of Three-Dimensional Discrete Element Method Based on Pro/ENGINEER

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.55-57.2069 ◽

2011 ◽

Vol 55-57 ◽

pp. 2069-2074

Author(s):

Hui Yan ◽

Jian Qun Yu ◽

Xing Xing Kou

Keyword(s):

Performance Analysis ◽

Discrete Element Method ◽

Optimization Design ◽

Three Dimensional ◽

Discrete Element ◽

New Method ◽

Method Performance ◽

Mechanical Components ◽

Library Function ◽

Element Method

This paper presents a new method that use the library function offered by Pro/TOOLKIT and on account of Visual C++ development platform to achieve the recognition of Pro/ENGINEER solid model of mechanical components and extraction of geometry information. Motion attribute is set according to requirements, and analytical mode of three-dimensional discrete element method is built, therefore, Pro/ENGINEER software and the performance analysis software of three-dimensional discrete element method developed autonomously are integrated. A kind of new method and new tool is offered to three-dimensional discrete element method performance analysis and optimization design, and three-dimensional discrete element method belongs to relevant mechanical components contacted and acted with granular materials. What’s more, the correctness and effectiveness of boundary modeling method of three-dimensional discrete element method and developed software are tested and verified through real examples.

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Modeling of the fragmentation by Discrete Element Method

DYMAT 2009 - 9th International Conferences on the Mechanical and Physical Behaviour of Materials under Dynamic Loading ◽

10.1051/dymat/2009215 ◽

2009 ◽

Author(s):

C. Mariotti ◽

V. Michaut ◽

J. F. Molinari

Keyword(s):

Discrete Element Method ◽

Discrete Element ◽

Element Method

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Discrete element method to model cracking for two layer systems

TAPPI Journal ◽

10.32964/tj18.2.101 ◽

2019 ◽

Vol 18 (2) ◽

pp. 101-108

Author(s):

Daniel Varney ◽

Douglas Bousfield

Keyword(s):

Discrete Element Method ◽

Flexural Modulus ◽

Single Layer ◽

Discrete Element ◽

Flexural Stress ◽

Layer System ◽

Three Point Bending ◽

Moving Force ◽

Coating Layers ◽

Element Method

Cracking at the fold is a serious issue for many grades of coated paper and coated board. Some recent work has suggested methods to minimize this problem by using two or more coating layers of different properties. A discrete element method (DEM) has been used to model deformation events for single layer coating systems such as in-plain and out-of-plain tension, three-point bending, and a novel moving force picking simulation, but nothing has been reported related to multiple coating layers. In this paper, a DEM model has been expanded to predict the three-point bending response of a two-layer system. The main factors evaluated include the use of different binder systems in each layer and the ratio of the bottom and top layer weights. As in the past, the properties of the binder and the binder concentration are input parameters. The model can predict crack formation that is a function of these two sets of factors. In addition, the model can predict the flexural modulus, the maximum flexural stress, and the strain-at-failure. The predictions are qualitatively compared with experimental results reported in the literature.

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