...Chunxiao Yang; Qiang Wang; Qingyu Duan Purpose At present, DEM is unsuitable for analyzing reinforced concrete (RC) shear wall structures due to the lack of a shear wall model. In this paper, the macro-scale multi-spring shell element model (MSSEM) based on the DEM is proposed. The key model...

...Minyi Zhu; Guobin Gong; Xuehuiru Ding; Stephen Wilkinson Purpose The study aims to investigate the effects of pre-loading histories (pre-shearing and pre-consolidation) on the liquefaction behaviour of saturated loose sand via discrete element method (DEM) simulations. Design/methodology...

... screen, and its formula is as follows. Double-layer vibrating screen DEM Screening efficiency Orthogonal rotating multi-factor test (1) η = ( m s 1 m s 2 - m L 1 m L 2 ) * 100 % With the development of industrial technology, screening...

... Publishing Limited Licensed re-use rights only DEM Direct shear test Soil mechanical properties Vane test Hertz-Mindlin bonding model Istvan Keppler can be contacted at: keppler.istvan@gmail.com 20 05 2021 14 11 2021 29 11 2021 07 12 2021 One of the most...

...Ziqiang Fang; Songlin Peng; Jiangang Yi; Jun Du Purpose The purpose of this paper is to optimize the structure of plough blades in a ploughshare mixer using the discrete element method (DEM) simulations. Design/methodology/approach Using the validated DEM model, three numerical tests...

... mechanics. The Hertz–Mindlin model is the most commonly used contact model in DEMs due to its efficient and accurate force calculation for two elastic bodies in normal contact (Hertz, 1882). Hertz made the following assumptions in his theory: The radius of the circle of contact is small...

... cannot be handled by a single computational solver. This paper aims to establish a framework for the development, verification and application of a co-simulation of discrete element method (DEM) and multibody dynamics (MBD). Design/methodology/approach The two methods have been coupled in two...

... method (DEM) numerical simulations. Design/methodology/approach In this paper, a three-dimensional discrete element model of vibrating screen with composite vibration form of swing and translation was proposed to simulate the screening process. In total, 11 kinds of non-spherical particles whose...

... works reported solution approaches to enable the use of the hybrid model of parallel programming for DEM simulations. Most of the employed strategies consider Newton’s third law in order to reduce the total number of intersection tests and force computations. These methods need to control the memory...

...Diogo Tenório Cintra; Ramiro Brito Willmersdorf; Paulo Roberto Maciel Lyra; William Wagner Matos Lira Purpose The purpose of this paper is to present a methodology for parallel simulation that employs the discrete element method (DEM) and improves the cache performance using Hilbert space filling...

....com © Emerald Group Publishing Limited 2015 Microstructure Granular material DEM Stress path Yield function (Equation 10) Figure 9 shows the evolution of the parameter S during the loading process under the four different stress paths, in which the macro stress...

... DEM contact detection. Consider an edge-to-edge contact between two undilated polyhedral grains. To determine if an overlap exists between the grains it is necessary to establish whether the line segments that define the edges penetrate the other grain. This is not a trivial calculation. However...