Discrete element method

Evaluation of macroscopic stresses in discrete element models of sintering processes

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Evaluation of macroscopic stresses in discrete element models of sintering processes Jerzy Rojek1, Szymon Nosewicz1, Katarzyna Pietrzak1,2, Marcin Chmielewski2 1Institute of Fundamental Technological Research (IPPT PAN), Pawińskiego 5B, 02-106 Warszawa, Poland.2Institute of Electronic Materials Technology, Wólczyńska 133, 01-919 Warszawa, Poland. DOI: https://doi.org/10.7494/cmms.2015.1.0526 Abstract: This paper presents investigation of macroscopic stresses in powder metallurgy process modelled … Read more

Application of hp-adaptive FEM, local numerical homogenization and discrete element method to modeling of asphalt pavement structures

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Application of hp-adaptive FEM, local numerical homogenization and discrete element method to modeling of asphalt pavement structures Marek Klimczak, Witold Cecot, Waldemar Rachowicz Cracow University of Technology, ul. Warszawska 24, 31-155 Kraków, Poland. DOI: https://doi.org/10.7494/cmms.2013.4.0467 Abstract: This paper presents a novel approach to modeling of asphalt pavement structures. Analysed medium exhibits a complex behaviour due … Read more

Optimization of hopper design by genetic algorithms

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Optimization of hopper design by genetic algorithms Yaowei Yu, Frank Pettersson, Henrik Saxén Thermal and Flow Engineering Laboratory, Department of Chemical Engineering,Åbo Akademi University, Biskopsg. 8, FI-20500 Åbo, Finland. DOI: https://doi.org/10.7494/cmms.2011.1.0308 Abstract: In the handling of particulate matters, hoppers are frequently used as intermediate storage, but during their filling and emptying, particle size segregation may … Read more

From discrete particles to solids – about sintering and self-healing

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From discrete particles to solids – about sintering and self-healing Stefan Luding Multi Scale Mechanics, CTW, UTwente, POBox 217, 7500AE Enschede, NL. DOI: https://doi.org/10.7494/cmms.2011.1.0312 Abstract: In this review, particulate materials are studied using the Discrete Element Method (DEM), where the particles keep their identity throughout. Loose particles can sinter due to time-, stress- or temperature-dependent … Read more

Discrete element simulation of powder sintering

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Discrete element simulation of powder sintering Jerzy Rojek1, Katarzyna Pietrzak1,2, Marcin Chmielewski2, Dariusz Kaliński2, Szymon Nosewicz1 1Institute of Fundamental Technological Research, Polish Academy of Sciences ul. Pawińskiego 5B, 02-106 Warszawa.2Institute of Electronic Materials Technology ul. Wólczyńska 133, 01-919 Warszawa. DOI: https://doi.org/10.7494/cmms.2011.1.0314 Abstract: This paper presents numerical modelling of powder sintering. The numerical model introduced in … Read more

Discrete element modelling of rock cutting

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Discrete element modelling of rock cutting Jerzy Rojek Institute of Fundamental Technological Research,Swietokrzyska 21, 00-049 Warszawa, Poland. DOI: https://doi.org/10.7494/cmms.2007.2.0147 Abstract: The present paper presents modelling of rock cutting processes using the discrete element method. Numerical algorithm of the discrete element method employing cylindrical and spherical elements has been implemented and numerical simulation of rock cutting … Read more