Papers

Maximization of the Spectral Gap for Chemical Graphs by means of a Solution to a Mixed Integer Semidefinite Program

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Maximization of the Spectral Gap for Chemical Graphs by means of a Solution to a Mixed Integer Semidefinite Program Soňa  Pavlíková, Daniel Ševčovič FCFT, Slovak University of Technology, 812 37 Bratislava, Slovakia, and FMFI, Comenius University, 842 48 Bratislava, Slovakia. DOI: https://doi.org/10.7494/cmms.2016.4.0586 Abstract: In this paper we analyze the spectral gap of a weighted graph … Read more

Computer aided design of manufacturing of automotive part made of magnesium alloy

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Computer aided design of manufacturing of automotive part made of magnesium alloy Mateusz Ambroziński1, Łukasz Rauch1, Marek Paćko1, Zbigniew Gronostajski2, Karol Jaśkiewicz2, Władysław Chorzępa3 1AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland. 2Politechnika Wrocławska, ul. Łukasiewicza 5, 50-371 Wrocław, Poland. 3Kirchhoff Polska Sp. z o.o., ul. Wojska Polskiego, 39-300 Mielec, Poland. … Read more

Application of significance analysis to finding root causes of product defects in continuous casting of steel

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Application of significance analysis to finding root causes of product defects in continuous casting of steel Agnieszka Rodziewicz, Marcin Perzyk Institute of Manufacturing Technologies, Warsaw University of Technology – Narbutta 85, 02-524 Warsaw, Poland. DOI: https://doi.org/10.7494/cmms.2016.4.0588 Abstract: The aim of this paper is to present an application of the input variable significance analysis to finding … Read more

Scale effect in design of the pre-stressed micro-dies for microforming

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Scale effect in design of the pre-stressed micro-dies for microforming Wojciech Presz Institute of Manufacturing Technologies, Warsaw University of Technology – Narbutta 85, 02-524 Warsaw, Poland. DOI: https://doi.org/10.7494/cmms.2016.4.0589 Abstract: In dies for cold extrusion permissible internal pressure may be increased by the use of one or two shrink rings. Such design creates tensile stresses in … Read more

Sensitivity analysis and identification of the phase transformation model based on the control theory

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Sensitivity analysis and identification of the phase transformation model based on the control theory Ivan Milenin, Krzysztof Bzowski, Łukasz Rauch AGH University of Science and Technology, al. A. Mickiewicza 30, 30-059 Kraków, Poland. DOI: https://doi.org/10.7494/cmms.2016.4.0590 Abstract: The aim of this work was to improve the previously developed model of austenite-ferrite phase transformation by its identification for selected … Read more

Finite element core calculations and stream processing

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Finite element core calculations and stream processing Krzysztof Banaś, Jan Bielański, Kazimierz Chłoń AGH University of Science and Technology, al. A. Mickiewicza 30, 30-059 Kraków, Poland. DOI: https://doi.org/10.7494/cmms.2016.4.0591 Abstract: We present the execution model and performance analysis for the important phase of finite element calculations, the creation of systems of linear equations. We assume that the process is … Read more

Strategy for the selection of the best phase transformation model for simulation of metals processing

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Strategy for the selection of the best phase transformation model for simulation of metals processing Łukasz Rauch, Krzysztof Bzowski, Konrad Perzyński, Łukasz Madej, Andriy Milenin, Maciej Pietrzyk AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland. DOI: https://doi.org/10.7494/cmms.2016.4.0592 Abstract: Connection of the finite element program with phase transformation models is often needed … Read more

Evaluation of efficient computational work division in parallel Monte Carlo grain growth algorithm

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Evaluation of efficient computational work division in parallel Monte Carlo grain growth algorithm Mateusz Sitko, Łukasz Madej AGH University of Science and Technology, 30 Mickiewicza Av., Krakow, 30-059 Poland. DOI: https://doi.org/10.7494/cmms.2016.3.0579 Abstract: Implementation of parallel version of the Monte Carlo (MC) grain growth algorithm is the subject of the present paper. First, modifications of the classical … Read more

Data management in CUDA Programming for High Bandwidth Memory in GPU Accelerators

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Data management in CUDA Programming for High Bandwidth Memory in GPU Accelerators Grzegorz Korpała Institute of Metal Forming, Technische Universität Bergakademie Freiberg Bernhard v. Cotta Str. 4, 09599 Freiberg, Germany. DOI: https://doi.org/10.7494/cmms.2016.3.0580 Abstract: The number of applications that use GPU accelerated calculations always grows. The software conversion to such calculation type is although complex but gives enormous … Read more

Parallel computing of metal forming simulation in QForm software

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Parallel computing of metal forming simulation in QForm software Dmitry Gerasimov, Arthur Gartvig QuantorForm Ltd., Moscow, Russia. DOI: https://doi.org/10.7494/cmms.2016.3.0582 Abstract: In this study, the principle of parallelization of data and tasks implemented in QForm software is described. The dependence of the number of simultaneously working logical processors or cores of a multi-core CPU on the solving time of metal … Read more