Papers

Controlling deformation inhomogeneity in the Accumulative Angular Drawing Process assisted by constitutive and multiscale numerical modelling

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Controlling deformation inhomogeneity in the Accumulative Angular Drawing Process assisted by constitutive and multiscale numerical modelling Paulina Lisiecka – Graca1, Marcin Kwiecień1, Lukasz Madej1, Krzysztof Muszka1, Janusz Majta1, Bradley P. Wynne2 1AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Krakow, Poland. 2The University of Sheffield, Mappin St, S1 3JD Sheffield, United Kingdom. DOI: … Read more

Prediction of fracture onset in flashless warm forging Mg alloy AZ61

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Prediction of fracture onset in flashless warm forging Mg alloy AZ61 Piotr Skubisz, Łukasz Lisiecki AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Krakow, Poland. DOI: https://doi.org/10.7494/cmms.2019.3.0638 Abstract: The paper presents an innovative precision forging process, highlighting the use of advanced simulation of net forging process in multiple-tool die set with consideration of … Read more

The numerical analysis of selected defects in forging processes

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The numerical analysis of selected defects in forging processes Aneta Łukaszek-Sołek, Sylwia Bednarek, Łukasz Lisiecki, Piotr Skubisz AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Krakow, Poland. DOI: https://doi.org/10.7494/cmms.2019.3.0636 Abstract: High demands made by customers and the need to reduce production costs while maintaining high quality of products brings the necessity to include … Read more

Effect of forging sequence on evolution of parameters controlling microstructure in multistage drop forging process

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Effect of forging sequence on evolution of parameters controlling microstructure in multistage drop forging process Piotr Skubisz, Łukasz Lisiecki, Janusz Majta, Krzysztof Muszka AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Krakow, Poland. DOI: https://doi.org/10.7494/cmms.2019.3.0641 Abstract: The study presents the comparative analysis of competitive techniques of forging and analysis of the effect of … Read more

On the extrapolated VMS-POD method for incompressible flows

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On the extrapolated VMS-POD method for incompressible flows Fatma G. Eroglu1, Songul Kaya2 1Department of Mathematics, Faculty of Science, Bartın University, 74110, Bartın, Turkey. 2Department of Mathematics, Middle East Technical University, 06531 Ankara, Turkey. DOI: https://doi.org/10.7494/cmms.2019.2.0634 Abstract: In this study, proper orthogonal decomposition based reduced-order modelling and variational multiscale stabilization method are utilized for the … Read more

Space-time Taylor-Hood elements for incompressible flows

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Space-time Taylor-Hood elements for incompressible flows Douglas R. Q. Pacheco, Olaf Steinbach Institute of Applied Mathematics, Graz University of Technology, Graz, Austria.Graz Center of Computational Engineering, Graz University of Technology, Graz, Austria. DOI: https://doi.org/10.7494/cmms.2019.2.0633 Abstract: Space-time variational methods differ from time-stepping schemes by discretising the whole space-time domain with finite elements. This offers a natural … Read more

Simulation of propagative instability in shear using gradient-enhanced and viscoplastic model

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Simulation of propagative instability in shear using gradient-enhanced and viscoplastic model Marzena Mucha, Balbina Wcisło, Jerzy Pamin Chair for Computational Engineering, Cracow University of Technology, Warszawska 24, 31-155 Kraków, Poland. DOI: https://doi.org/10.7494/cmms.2019.2.0635 Abstract: The research presented in this paper is focused on simulation of a propagative instability called Lueders bands using large strain plasticity with … Read more

Phase field modeling of cyclic fatigue crack growth under mixed mode loading

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Phase field modeling of cyclic fatigue crack growth under mixed mode loading Christoph Schreiber, Charlotte Kuhn, Ralf Müller Institute of Applied Mechanics, Technische Universität Kaiserslautern, Germany. DOI: https://doi.org/10.7494/cmms.2019.2.0632 Abstract: For the numerical handling of nucleation and extension of cracks within different materials, phase field modeling of fracture was shown to be a very beneficial technique … Read more

Crystal plasticity finite element simulations of the indentation test

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Crystal plasticity finite element simulations of the indentation test Karol Frydrych Institute of Fundamental Technological Research, Polish Academy of Sciences, Pawińskiego 5B, 02-106 Warsaw, Poland. DOI: https://doi.org/10.7494/cmms.2019.2.0631 Abstract: The goal of the paper is to report the successful simulations of the nanoindentation problem. The finite-strain isotropic elasto-plasticity and crystal elasto-plasticity models used for the simulations … Read more

Investigation of metal flow inside shape grooves during rolling of channels with large strain intensities

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Investigation of metal flow inside shape grooves during rolling of channels with large strain intensities Michał Dziedzic, Stanisław Turczyn, Zbigniew Kuźmiński AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Krakow, Poland. DOI: https://doi.org/10.7494/cmms.2019.3.0640 Abstract: The aim of the following study was to introduce new roll pass design of channels into industrial practice. The … Read more