cmms

Flow stress numerical modeling for large strain deformation in magnesium alloy Az31

by

Flow stress numerical modeling for large strain deformation in magnesium alloy Az31 Luigi De Pari Jr1, Wojciech Z. Misiolek1, Joy H. Forsmark2, Alan A. Luo3 1Institute for Metal Forming, Lehigh University, Bethlehem, PA, USA. 2Ford Motor Company, Research and Innovation Center, Dearborn, MI, USA. 3General Motors Research and Development Center, Warren, MI, USA. DOI: https://doi.org/10.7494/cmms.2010.2.0280 … Read more

Physical and numerical modelling of plastic deformation of magnesium alloys

by

Physical and numerical modelling of plastic deformation of magnesium alloys Dariusz Kuc1, Maciej Pietrzyk2 1Politechnika Śląska, ul. Krasińskiego 8, 40-019 Katowice. 2AGH University of Science And Technology, al. Mickiewicza 30, 30-059 Krakow, Poland. DOI: https://doi.org/10.7494/cmms.2010.2.0281 Abstract: Proposition of a new material model accounting for twinning and slip is described in the paper. The model was … Read more

Estimation of parameters of feed-back pulse coupled neural networks (FBPCNN) for purposes of microstructure images segmentation

by

Estimation of parameters of feed-back pulse coupled neural networks (FBPCNN) for purposes of microstructure images segmentation Łukasz Łukasik, Łukasz Rauch Faculty of Metals Engineering and Industrial Computer Science,AGH University of Science and Technology, Kraków, Poland. DOI: https://doi.org/10.7494/cmms.2010.1.0270 Abstract: Although the Pulse Coupled Neural Network (PCNN) as well as FBPCNN (with feed-back) have been, since 1990, … Read more

New trends in neurocybernetics

by

New trends in neurocybernetics Ryszard Tadeusiewicz Department of Automatics, AGH University of Science and Technology, Kraków, Poland. DOI: https://doi.org/10.7494/cmms.2010.1.0271 Abstract: Many years ago neural networks were subject of scientific research conducted only for curiosity. The researchers pursue to better understanding of natural brain behaviour by means of forming of mathematical, electronic and simulation models. Unexpectedly … Read more

Neural network-based prediction of additives in the steel refinement process

by

Neural network-based prediction of additives in the steel refinement process Tadeusz Wieczorek1, Mirosław Kordos2 1Department of Management and Computer Science, Faculty of Material Engineering and Metallurgy, The Silesian University of Technology, Krasinskiego 8, 40-019 Katowice, Poland. 2Department of Mathematics and Computer Science, University of Bielsko-Biala, Willowa 2, 43-309 Bielsko-Biala, Poland. DOI: https://doi.org/10.7494/cmms.2010.1.0272 Abstract: The paper … Read more

Data preparation

by

Data preparation Andrzej Kochański Instytut Technik Wytwarzania, Politechnika Warszawska. DOI: https://doi.org/10.7494/cmms.2010.1.0273 Abstract: The paper presents the current state of the art in the area of data preparation. It proposes a complete methodology for industrial data preparation, as well as a nomenclature connected with the proposed methodology. The reasons behind the need to develop a new … Read more

Stability and uniqueness of flow approach algorithms in sheet metal forming simulations

by

Stability and uniqueness of flow approach algorithms in sheet metal forming simulations Włodzimierz Sosnowski1,2, Tomasz Bednarek1,2, Piotr Kowalczyk1 1Institute of Fundamental Technological Research PAN, Warsaw, ul. Pawińskiego 5b. 2Kazimierz Wielki University, Bydgoszcz, ul. Chodkiewicza 30. DOI: https://doi.org/10.7494/cmms.2010.1.0274 Abstract: The objective of this paper is to improve stability conditions, uniqueness and convergence of the flow approach … Read more

The model of the temperature field and fluid flow in elements heated by moving heat sources

by

The model of the temperature field and fluid flow in elements heated by moving heat sources Wiesława Piekarska, Marcin Kubiak, Zbigniew Saternus Institute of Mechanics and Machine Design,,Czestochowa University of Technology,Dąbrowskiego 69, 42-200 Częstochowa. DOI: https://doi.org/10.7494/cmms.2010.1.0275 Abstract: This paper presents numerical analysis of thermal phenomena in hybrid laser – arc welding. The temperature field was … Read more

Different mesh management strategies for non-stationary self-adaptive hp finite element method

by

Different mesh management strategies for non-stationary self-adaptive hp finite element method Maciej Paszyński1, Paweł Matuszyk2 1Department of Computer Science, AGH University of Science and Technology Al. Mickiewicza 30, 30-059 Cracow, Poland. 2Department of Applied Computer Science and Modelling, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Cracow, Poland. DOI: https://doi.org/10.7494/cmms.2010.1.0276 Abstract: In this … Read more

Experimental verification results of real and equivalent drawbeads numerical simulations

by

Experimental verification results of real and equivalent drawbeads numerical simulations Zbigniew Zimniak, Dawid Rutkowski Institute of Production Engineering and Automation, Wroclaw University of Technology,ul. Łukasiewicza 5, 50-371 Wroclaw, Poland. DOI: https://doi.org/10.7494/cmms.2010.1.0277 Abstract: In sheet metal forming, drawbeads play an important role in material flow control. In this paper the results of simulations of drawbeads and … Read more