cmms

Modelling aspects of laser cladding of bioactive glass coatings on ultrafine-grained titanium substrates

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Modelling aspects of laser cladding of bioactive glass coatings on ultrafine-grained titanium substrates Szymon Bajda, Michal Krzyzanowski AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Krakow, Poland. DOI: https://doi.org/10.7494/cmms.2019.3.0637 Abstract: Titanium alloys, due to their exceptional mechanical properties and biocompatibility, are commonly used to produce medical implants nowadays. However, the presence of such … Read more

Additive manufacturing in assisting planning of prototyping and closed – die forging

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Additive manufacturing in assisting planning of prototyping and closed – die forging Stefan Szczepanik, Piotr Nikiel AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Krakow, Poland. DOI: https://doi.org/10.7494/cmms.2019.3.0642 Abstract: The steps in the current additive manufacturing processing sequence are: conceptualization and CAD, conversion to STL, transfer and manipulation of STL file on an … Read more

Selected aspects of manufacturing structural elements from titanium alloys combining cost-effective powder metallurgy technology and metal forming processes

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Selected aspects of manufacturing structural elements from titanium alloys combining cost-effective powder metallurgy technology and metal forming processes Krystian Zyguła, Marek Wojtaszek, Tomasz Śleboda, Oleksandr Lypchanskyi AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Krakow, Poland. DOI: https://doi.org/10.7494/cmms.2019.3.0643 Abstract: Titanium alloys are mainly used in the automotive, aviation, shipbuilding and military industries. Their … Read more

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