Papers

Investigation on sheet hydroforming of tailor-welded blanks and comparison with conventional deep drawing

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Investigation on sheet hydroforming of tailor-welded blanks and comparison with conventional deep drawing Mahdi Qarakhani1, Abolfazl Masoumi1, Mohammad Habibi Parsa2, Alireza Arayee1 1Department of Mechanical Engineering, Faculty of Engineering 2Department of Metallurgy and Materials Engineering, Faculty of Engineering University of Tehran, P.O.Box 11155/4563. DOI: https://doi.org/10.7494/cmms.2009.1.0223 Abstract: In this investigation, finite element simulations were carried out … Read more

Effect of temperature and strain rate on friction factor during hot deformation of al-mg and al-cu-mg al-alloys

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Effect of temperature and strain rate on friction factor during hot deformation of al-mg and al-cu-mg al-alloys Pavel Petrov1, Denis Gnevashev1, Andrey Dubinchin1, Michael Petrov1, Valentin Solotych2, Jon Wostryck Eiesland3 1Moscow State Technical University “MAMI”, B.Semenovskay str. 38, 107023 Moscow, Russia. 2Technical University of Munich, Faculty of Mechanical Engineering. 3Norwegian University of Science and Technology, … Read more

The numerical determination of contact zone tool and work-pieces in burnishing rolling process

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The numerical determination of contact zone tool and work-pieces in burnishing rolling process Radosław Patyk, Sylwia Patyk, Leon Kukiełka Department of Technical Mechanics and Strength Materials,Faculty of Mechanical Engineering,Koszalin University of Technology, ul. Raclawicka 15 – 17, Koszalin, Poland. DOI: https://doi.org/10.7494/cmms.2009.1.0224 Abstract: This work concerns burnishing rolling the shafts with elastic pressing of burnishing elements. … Read more

Numerical analysis of the influence of a change in the vertebral arteries joint angle on the blood flow

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Numerical analysis of the influence of a change in the vertebral arteries joint angle on the blood flow Krzysztof Jozwik, Damian Obidowski, Maciej Pogorzelski Medical Apparatus Division, Institute of Turbomachinery,,Technical University of Lodz, Lodz, Poland. DOI: https://doi.org/10.7494/cmms.2009.1.0209 Abstract: Cerebral circulation can be regarded as the most important element of blood circulation. Total ischaemia of neurotic … Read more

Numerical analysis of influence of surface geometrical structure prepared under burnishing rolling onto the state of strains and stress in product surface layer

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Numerical analysis of influence of surface geometrical structure prepared under burnishing rolling onto the state of strains and stress in product surface layer Agnieszka Kułakowska, Leon Kukiełka Department of Technical Mechanics and Strength Materials,Faculty of Mechanical Engineering,Koszalin University of Technology, ul. Raclawicka 15 – 17, Koszalin, Poland. DOI: https://doi.org/10.7494/cmms.2009.1.0225 Abstract: In the paper an application … Read more

Numerical study of a flow in the cerebral arterial circle

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Numerical study of a flow in the cerebral arterial circle Damian Obidowski, Krzysztof Jozwik, Piotr Reorowicz Medical Apparatus Division, Institute of Turbomachinery,,Technical University of Lodz, Lodz, Poland. DOI: https://doi.org/10.7494/cmms.2009.1.0210 Abstract: Blood is supplied to the brain by two internal carotid and two vertebral arteries. These arteries join to form the cerebral arterial circle (also called … Read more

Possibilities of the mechanical behaviour modelling of structures after severe plastic deformation

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Possibilities of the mechanical behaviour modelling of structures after severe plastic deformation Krzysztof Muszka, Karolina Doniec, Janusz Majta Faculty of Metals Engineering and Industrial Computer Science,,AGH University of Science and Technology, Mickiewicza 30, 30-059 Kraków, Poland. DOI: https://doi.org/10.7494/cmms.2009.1.0211 Abstract: Modelling of the mechanical response of the materials using computer simulation is very useful tool to … Read more

Modelling the influence of the structure on the properties of nanometals

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Modelling the influence of the structure on the properties of nanometals Romuald Dobosz, Tomasz Wejrzanowski, Krzysztof Jan Kurzydłowski Warsaw University of Technology, Faculty of Materials Science and Engineering, Wołoska 141, Warszawa 02-507, Poland. DOI: https://doi.org/10.7494/cmms.2009.1.0212 Abstract: The mechanical properties of materials depend on their structure. The influence of grain size and grain size distribution on … Read more

Numerical simulations of diamond microfluidic device for the biomolecules electrophoretic separations

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Numerical simulations of diamond microfluidic device for the biomolecules electrophoretic separations Jan M. Lysko1, Dariusz Witkowski2, Damian Obidowski2, Anna Karczemska2 1The Institute of Electron Technology, al. Lotnikow 32/46, 02-668 Warsaw, Poland. 2Technical University of Lodz, Institute of Turbomachinery, ul. Wolczanska 219/223, 90-924 Lodz, Poland. DOI: https://doi.org/10.7494/cmms.2009.1.0213 Abstract: Microfluidic devices known also as labs-on-chip, capillary electrophoresis … Read more

Sensitivity analysis of divergence of ion beam with respect to changes of shape of acceleration grid in kaufman type ion sources

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Sensitivity analysis of divergence of ion beam with respect to changes of shape of acceleration grid in kaufman type ion sources Jacek Rońda, Dominik Osiński Department of Applied Computer Science and Modelling,,University of Science and Technology AGH, Cracow, Poland. DOI: https://doi.org/10.7494/cmms.2009.1.0214 Abstract: This paper presents results of simulation for ion extraction from Kaufman type ion … Read more