Simulation of fresh concrete flow using Discrete Element …

Simulation of fresh concrete flow using Discrete Element Method (DEM): theory and applications. This article provides an overview of the development and the contemporary state of research in the field of simulating fresh concrete flow using the Discrete Element Method (DEM). First, this work originating from TC 222-SCF simulation of fresh

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Numerical simulation of concrete pumping process and …

The concrete pumping process was then simulated, where several flow features were observed such as roping, particle segregation and particle concentration. The frequency of the particles impacting on the bended pipe was monitored, a new time average collision intensity model based on impact force has been proposed to investigate the wear mechanism of the elbow.

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Numerical Study on Concrete Pumping Behavior via …

To better understand the fresh concrete pumping mechanisms in detail, the discrete element method is employed in this paper for the numerical simulation of local pumping problems. By modeling the coarse aggregates as rigid clumps and appropriately defining the contact models, the concrete flow in representative pipeline units is well revealed.

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Numerical Study on Concrete Pumping Behavior via Local Flow Simulation …

materials Article Numerical Study on Concrete Pumping Behavior via Local Flow Simulation with Discrete Element Method Yijian Zhan 1,* ID, Jian Gong 1,*, Yulin Huang 1,*, Chong Shi 2 ID, Zibo Zuo 1 and Yiqun Chen 3 1 General Engineering Institute of Shanghai Construction Group, …

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Yuanqiang TAN | National Huaqiao University | Institute …

Then the model and obtained parameters were used to simulate the concrete pumping process, gravity force. The hydrodynamic modeling of the fluid phase is based on direct numerical simulation.

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Extrusion process simulation and layer shape prediction during 3D-concrete …

30/7/2020 · Extrusion process simulation and layer shape prediction during 3D-concrete-printing using the Particle Finite Element Method Janis Reinolda;1, Venkatesh Naidu Nerella b, Viktor Mechtcherine, Gun ther Meschkea aInstitute for Structural Mechanics, Ruhr-Universit at Bochum, Universit atsstraˇe 150, 44801 Bochum, Germany

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Numerical simulation of fresh concrete flow: insight and challenges

illustration of CFD simulation of concrete tests, Figure 1 shows the calculation of slump as a function of time (from left to right at 0, 1, 2, 3 seconds) using the Bingham model, with τ0 = 90 Pa and of η pl = 110 Pa∙s. Figure 1. Simulation of concrete slump flow 4

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Numerical simulation of concrete pumping process and …

title = "Numerical simulation of concrete pumping process and investigation of wear mechanism of the piping wall", keywords = "DEM, Concrete pumping, Erosion, Wear process", author = "Yuanqiang Tan and Hao Zhang and Dongmin Yang and Shengqiang Jiang and Junhua Song and Yong Sheng",

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Materials | Free Full-Text | Numerical Study on Concrete …

The use of self-consolidating concrete and advanced pumping system enables efficient construction of super high-rise buildings; however, risks such as clogging or even bursting of pipeline still exist. To better understand the fresh concrete pumping mechanisms in detail, the discrete element method is employed in this paper for the numerical simulation of local pumping problems. By modeling

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Figure 14 from Numerical Study on Concrete Pumping …

Numerical Study on Concrete Pumping Behavior via Local Flow Simulation with Discrete Element Method @article{Zhan2019NumericalSO, title={Numerical Study on Concrete Pumping Behavior via Local Flow Simulation with Discrete Element Method}, author={Y. Zhan and Jian Gong and Yulin Huang and C. Shi and Zibo Zuo and Yiqun Chen}, journal={Materials}, year={2019}, volume={12} }

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Experimental-Computational Investigation of Elastic Modulus of Ultra-High-Rise Pumping Concrete

H. Ueda, Y. Sakai, K. Kinomura, K. Watanabe, T. Ishida and T. Kishi / Journal of Advanced Concrete Technology Vol. 18, 39-53, 2020 40 (Choi et al. 2013) . At present, there is no in-depth study on the effect of the ultra-hi gh-rise pumping on the elastic modulus of

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Materials | Free Full-Text | Numerical Study on Concrete …

The use of self-consolidating concrete and advanced pumping system enables efficient construction of super high-rise buildings; however, risks such as clogging or even bursting of pipeline still exist. To better understand the fresh concrete pumping mechanisms in detail, the discrete element method is employed in this paper for the numerical simulation of local pumping problems. By modeling

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Numerical Simulation on Concrete Pouring Process of Self-Compacting Concrete …

concrete flow, assuming that concrete is homogeneous but the material modeling and the numerical method can easily be applied to the simulation of heterogeneous fluids (Sonebai et al, 2007). Self-compacting concrete is a new kind of high performance concrete with excellent ability of fluidity.

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Yuanqiang TAN | National Huaqiao University | Institute …

Then the model and obtained parameters were used to simulate the concrete pumping process, gravity force. The hydrodynamic modeling of the fluid phase is based on direct numerical simulation.

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Numerical Simulation of Aggregate Shapes of Three …

Numerical illustrations show that aggregate shapes play an important role in the failure process of beams. Parameter studies also show that, although the homogeneity index has only a small influence on the elastic modulus, it plays an important role in the nonlinear softening behavior.

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Numerical Simulation of Working Characteristics of Concrete …

Numerical Simulation of Working Characteristics of Concrete Screw Conveyor Based on DEM Wenda Yu, Dong Li, Defang Zou and Shunda Yu EasyChair preprints are intended for rapid dissemination of research results and are integrated with the rest of July 1

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Numerical Simulation of the Ion Transport Behavior in Concrete …

Wenzheng HE et al.: Numerical Simulation of the Ion Transpor t Behavior in Concrete under Coupled Axial Loading and Sulfate Atta ck 1792 Technical Gazette 27, 6(2020), 1791-1799

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Numerical simulations of concrete processing: From …

1/9/2020 · Numerical simulations of fresh concrete flows and processing techniques have therefore been used in the past only for extremely specific (often research-based) cases or in the field of litigations, in which they allow for the a-posteriori assessment of the respective

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Numerical Simulation on Carbonation Depth of Concrete …

Jianxin Peng, Huang Tang, Jianren Zhang, Steve C. S. Cai, " Numerical Simulation on Carbonation Depth of Concrete Structures considering Time- and Temperature-Dependent Carbonation Process ", Advances in Materials Science and Engineering, vol. 2018,,,

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(PDF) Numerical simulation of concrete pumping process …

Numerical simulation of concrete pumping process and investigation of wear mechanism of the piping wall

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