Numerical simulation of concrete pumping process and | Talenet

Numerical simulation of concrete pumping process and

Numerical simulation of formwork pressure while pumping

Numerical simulation of formwork pressure while pumping self-compacting concrete bottom-up. Serge Tichko, Jens Van De Maele, Niels Vanmassenhove, Numerical simulations of these formwork filling tests have also been performed for comparison with the experiments. During the filling process, the formwork pressures were measured close to the

Extrusion process simulation and layer shape prediction

Jul 30, 2020 · then conducted using the numerical simulation, delineating the in uence of process and material parameters on the layer geometries, the dynamic surface forces generated under the extrusion nozzle and the inter-layer interactions. Keywords: 3D-concrete-printing, Additive manufacturing, Extrusion processes simulation, Regularized

Mesoscopic numerical simulation of fracture process and

Jul 04, 2020 · A 2D random circular aggregate model of cement mortar was established. The numerical simulation of the uniaxial static compression is carried out, the stress–strain curve, damage process, and damage model are obtained. The strength of the interfacial transition zone and the failure process of hardened cement mortar were discussed.

Numerical simulation on the erosion wear of a multiphase

Aug 13, 2017 · Tan Y, Zhang H, Yang D et al (2012) Numerical simulation of concrete pumping process and investigation of wear mechanism of the piping wall [J]. Tribol Int 46(1):137–144. Google Scholar 11. Zhang J, Kang J, Fan J et al (2016) Study on erosion wear of fracturing pipeline under the action of multiphase flow in oil & gas industry [J].

Numerical Study on Concrete Pumping Behavior via Local

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.

Field experiments and numerical simulations of whirlpool

Dec 12, 2013 · A three-dimensional numerical model that included 16 layers, 168 rows, 108 columns, and 1,99,584 units was established. Four simulation schemes were designed to verify the drawdown pumping with different pumping wells inside and outside the pit. 1. Scheme 1: pumping with wells CH1, CH4, CH5 and CH6 inside the pit;

[PDF] Numerical simulations of concrete processing: From

This review shows that the available numerical modelling tools are able to detect and predict various type of failures through the printing process, no matter if these happen at the scale of the nozzle, of one printed layer or of the entire object being printed. Abstract The concrete industry is facing new digital shaping processes that still have to be optimized and that require cement-based

(PDF) Simulation of Motion Behavior of Concrete in Pump

pumping pressure of concrete with pumping speed of 0.71 m/s in horizontal pipe, bend pipe, and vertical pipe increased by 0.0074 MPa, 0.0888 MPa, and 0.0264 MPa,

Materials | Free Full-Text | Numerical Reliability Study

Rheological quantification is important in many industries, the concrete industry in particular, e.g., pumping, form filling, etc. Instead of performing expensive and time-consuming experiments, numerical simulations are a powerful means in view of rheological assessment. However, due to the unclear numerical reliability and the uncertainty of rheological input data, it is important for the

Effect of lubrication layer on velocity profile of

Jan 22, 2015 · The rheology of concrete is predominant for the required pressures in a pumping pipe. However, more detailed information is required on the formation and the properties of the lubrication layer near the pipe surface, in order to be able to accurately predict the pressure-discharge relation. By means of experimental research in combination with advanced numerical simulations, the lubrication

Numerical Simulation of the Construction Process of Long

Mar 05, 2021 · A numerical model for the construction process of long spiral CFG piles is established based on the coupled Eulerian–Lagrangian method. The construction process is divided into drilling process and concrete pouring process for modeling. The influence of long spiral CFG piles construction on saturated sand foundation is studied, and dynamic responses, changes of pore water pressure, and …

Masoud HOSSEINPOOR | PostDoc Position | Ph.D

Masoud does research in properties of Self Consolidating Concrete (SCC), Rheological behavior of SCC, Numerical simulation of fresh SCC performance, Simulation of pumping process of SCC, study on

Experimental and numerical analysis of 3D printed cement

Mar 24, 2021 · Investigations involving the experimental and numerical analysis of inkjet (powder-based) 3DP are relatively limited for cement mortar materials. This study, by using cement mortar specimens, aimed to determine the optimum strength of 3D printed structural members in all three planes by identifying the compressive strength of cubes, the modulus of elasticity and Poisson's ratio. In addition

[PDF] NUMERICAL SIMULATION OF FRACTURE PROCESS OF CONCRETE

Corpus ID: 59569230. NUMERICAL SIMULATION OF FRACTURE PROCESS OF CONCRETE MODEL BY RIGID BODY SPRING METHOD @inproceedings{Nagai2002NUMERICALSO, title={NUMERICAL SIMULATION OF FRACTURE PROCESS OF CONCRETE MODEL BY RIGID BODY SPRING METHOD}, author={K. Nagai and Yasuhiko Sato and T. Ueda and Y. Kakuta}, year={2002} }

Numerical simulation of fracture process of concrete under

Simulation of cracks and cracking process is one of the difficult problems in the numerical simulation of concrete. In this paper, the discrete element method (DEM) was applied to the numerical simulation of concrete specimen under uniaxial compression and the whole process of crack generation and development were visualized. In order to simulate the three different components of aggregates

Mesoscopic Numerical Simulation of Fracture Process and

The use of numerical analysis methods to study concrete is also known as "numerical concrete." Until now, advanced mesoscopic mechanics analysis theory and computer technology efforts contribute to explore the numerical simulation of damage process and the influence on material damage in concrete with the finite element method.

Numerical Simulation on Carbonation Depth of Concrete

Numerical Simulation on Carbonation Depth of Concrete Structures considering Time- and Temperature-Dependent Carbonation Process Jianxin Peng,1 Huang Tang,2 Jianren Zhang,3 and Steve C. S. Cai4 1School of Civil Engineering, Changsha University of Science and Technology, Changsha, Hunan 410114, China 2School of Civil Engineering, Hunan City

Investigation of Contact Parameters of DEM Model in Flow

Numerical simulation of concrete pumping process and investigation of wear mechanism of the piping wall. Article. Feb 2012; The concrete pumping process was then simulated, where several flow

Numerical simulation of concrete pumping process and

A numerical simulation has been conducted to study the solid–fluid multi-phase flow problem in concrete pumping process. The kinematics and trajectory of the discrete particles as well as the

MESHFREE VISCOELASTIC MODELING: TOWARD …

costly, numerical simulation properly validated with experiments ﬀ a far less costly and more ﬀe alternative. To numerically model the behavior of concrete at fresh or solidiﬁed state, a viscoelastic constitutive law for both small-strain and ﬁnite-strain are introduced based on …