Optimization of material distribution for forged automotive components using hybrid optimization techniques

Optimization of material distribution for forged automotive components using hybrid optimization techniques Przemysław Sebastjan1, Wacław Kuś1 1Silesian University of Technology, Department of Computational Mechanics and Engineering, Konarskiego 18A, Gliwice, Poland. DOI: https://doi.org/10.7494/cmms.2021.2.0746 Abstract: The paper deals with the problem of optimal material distribution inside the provided design area. Optimization based on deterministic and stochastic algorithms … Read more

FFT-based simulation using a reduced set of frequencies adapted to the underlying microstructure

FFT-based simulation using a reduced set of frequencies adapted to the underlying microstructure Christian Gierden1, Johanna Waimann1, Bob Svendsen2,3, Stefanie Reese1 1RWTH Aachen University, Institute of Applied Mechanics, 52074 Aachen, Germany. 2RWTH Aachen University, Material Mechanics, 52062 Aachen, Germany. 3Max-Planck-Institut für Eisenforschung GmbH, Microstructure Physics and Alloy Design,40237 Düsseldorf, Germany. DOI: https://doi.org/10.7494/cmms.2021.1.0742 Abstract: Instead of … Read more

Considering semi-crystallinity in molecular simulations of mechanical polymer properties –using nanoindentation of polyethylene as an example

Considering semi-crystallinity in molecular simulations of mechanical polymer properties – using nanoindentation of polyethylene as an example Susanne Fritz1 1FILK Freiberg Institute gGmbH, Meißner Ring 1-5, 09599 Freiberg, Germany. DOI: https://doi.org/10.7494/cmms.2021.1.0747 Abstract: Molecular dynamic (MD) simulations have been used to investigate the response of semi-crystalline polymers in nanoindentation tests, using polyethylene (PE) as an example. … Read more

A numerical simulation study of mold filling in the injection molding process

A numerical simulation study of mold filling in the injection molding process Markus Baum1, Denis Anders2 1Cologne University of Applied Sciences (TH Köln), Group for Computational Mechanics and Fluid Dynamics, Steinmüllerallee 1, 51643 Gummersbach, Germany. 2Cologne University of Applied Sciences (TH Köln), Group for Computational Mechanics and Fluid Dynamics, Steinmüllerallee 1, 51643 Gummersbach, Germany. DOI: … Read more

The influence of material aging on the structural behavior of a flexible roof with a polymer membrane shell

The influence of material aging on the structural behavior of a flexible roof with a polymer membrane shell Andrei V. Chesnokov1, Vitalii V. Mikhailov1, Ivan V. Dolmatov1 1The Faculty of Civil Engineering, Lipetsk State Technical University, Moskovskaya street 30, 398600 Lipetsk, Russian Federation. DOI: https://doi.org/10.7494/cmms.2021.1.0748 Abstract: The roof structure considered in the research consists of … Read more

A model for changing the technological process for the growth of epitaxial layers by means of the heating of the growth zone

A model for changing the technological process for the growth of epitaxial layers by means of the heating of the growth zone Evgeny L. Pankratov1, 2 1Nizhny Novgorod State University, 23 Gagarin avenue, Nizhny Novgorod, 603950, Russia 2Nizhny Novgorod State Technical University, 24 Minin Street, Nizhny Novgorod, 603950, Russia DOI: https://doi.org/10.7494/cmms.2021.1.0741 Abstract: The nonstationary transfer … Read more

The effect of the assumed thermophysical properties of steel on the heat transfer calculation result in contact phenomena

The effect of the assumed thermophysical properties of steel on the heat transfer calculation result in contact phenomena Marcin Rywotycki1, Zbigniew Malinowski1, Aleksandra Przyłucka1, Krzysztof Sołek2 1AGH University of Science and Technology, Department of Heat Engineering & Environment Protection, al. Mickiewicza 30,30-059 Krakow, Poland. 2AGH University of Science and Technology, Department of Ferrous Metallurgy, al. … Read more

An accuracy analysis of the cascaded lattice Boltzmann method for the 1D advection-diffusion equation

An accuracy analysis of the cascaded lattice Boltzmann method for the 1D advection-diffusion equation Robert Straka1,2, Keerti Vardhan Sharma3 1AGH University of Science and Technology, Department of Heat Engineering and Environment Protection, Faculty of Metals Engineering and Industrial Computer Science, al. Mickiewicza 30, 30-059, Krakow, Poland. 2Czech Technical University in Prague, Department of Mathematics, Faculty … Read more

The influence of coolant velocity on the local heat transfer coefficient during steel quenching

The influence of coolant velocity on the local heat transfer coefficient during steel quenching Artur Szajding1, Andrzej Gołdasz1, Tadeusz Telejko1 1AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Krakow, Poland DOI: https://doi.org/10.7494/cmms.2020.4.0737 Abstract: The results of the calculations of the local heat transfer coefficient HTC and a heat flux HF on the face … Read more

Identification of the average and local boundary condition of heat transfer during cooling with a water spray under surface boiling

Identification of the average and local boundary condition of heat transfer during cooling with a water spray under surface boiling Elżbieta Jasiewicz1, Beata Hadała1, Zbigniew Malinowski1 1AGH University of Science and Technology, Faculty of Metals Engineering and Industrial Computer Science, Department of Heat Engineering and Environment Protection, al. Mickiewicza 30, 30-059 Krakow, Poland DOI: https://doi.org/10.7494/cmms.2020.4.0734 … Read more