cmms Computer image analysis in quantitative metallography Jan Szala Katedra Nauki o Materialach, Politechnika Śląska, Krasińskiego 8, 40-019 Katowice. DOI: https://doi.org/10.7494/cmms.2003.1.0035 Abstract: The computer image analysis is performed on digital images consisting from pixels, their values, in certain scale, correspond to a mean grey level or colour of metalographic microsection area represented by a given pixel. … Read more
Optimization of drawbead position in sheet metal forming Artur Marczewski, Włodzimierz Sosnowski Instytut Podstawowych Problemów Techniki PAN, Świętokrzyska 21, 00-049 Warszawa. DOI: https://doi.org/10.7494/cmms.2003.1.0032 Abstract: In this paper the optimization of drawbead position based on sensitivity analysis is considered. The finite element simulation of sheet metal forming process and ?exact?, direct differentiation method (DDM) of sensitivity … Read more
Modelling of the influence of crystallographic texture evolution on the plastic anisotropy development and strain localization in metal sheets Katarzyna Kowalczyk1, Wiktor Gambin2 1Instytut Podstawowych Problemów Techniki PAN, Warszawa. 2Wydział Mechatroniki Politechniki Warszawskiej, Warszawa. DOI: https://doi.org/10.7494/cmms.2003.1.0031 Abstract: Model of evolution of plastic anisotropy due to crystallographic texture development in metals subjected to large deformation processes … Read more
Methodology of solution of joint problems of modelling, identification and multi-criterion optimization in quality control for metallurgical processes Ludmiła Dymowa, Paweł Sewastjanow Wydzia ł Inżynierii Mechanicznej i Informatyki Politechniki Częstochowskiej. DOI: https://doi.org/10.7494/cmms.2003.1.0033 Abstract: The related simulation, identification and optimization problems in technological development and product quality control in the metallurgical mini-plant are considered. It is … Read more
Modelling of temperature field and phase transformation in elements regenerated by surfacing Jerzy Winczek Czestochowa University of Technology. DOI: https://doi.org/10.7494/cmms.2002.4.0029 Abstract: In work the model of field temperature and phase changes calculation for multibeads solid wire GMA surfacing is presented. For adopted diagram of surfacing the temperature field is given, with regard of call out … Read more
Problem of modelling of materials properties during deformation under varying conditions Maciej Pietrzyk1, Roman Kuziak2 1AGH University of Science and Technology, al. Adama Mickiewicza 30, 30-059 Kraków.2Instytut Metalurgii Żelaza w Gliwicach, ul. Karola Miarki 12-14, 44-100 Gliwice. DOI: https://doi.org/10.7494/cmms.2002.4.0030 Abstract: The objective of the work was to study the importance of accounting for the history … Read more
Modification of polynomial bezier surfaces Bogusław Bożek, Prokop Środa AGH University of Science and Technology, al. Adama Mickiewicza 30, 30-059 Kraków. DOI: https://doi.org/10.7494/cmms.2002.4.0027 Abstract: In this paper some methods of modification of Bezier two-dimensional surfaces are presented. For surfaces defined on rectangular and triangular domain, two methods of this modification are constructed. These simple methods … Read more
Probabilistic theory of screening of particles growth Andriy Burbelko AGH University of Science and Technology, al. Adama Mickiewicza 30, 30-059 Kraków. DOI: https://doi.org/10.7494/cmms.2002.4.0028 Abstract: The study of grains growth during a phase and structural transformations has essential importance for materials science and engineering. The existing Kolmogorov theory covers growth of grains on the assumptions of … Read more
Solution of poisson equation using spectral method Bogusław Bożek AGH University of Science and Technology, al. Adama Mickiewicza 30, 30-059 Kraków. DOI: https://doi.org/10.7494/cmms.2002.2.0022 Abstract: The problem of the simulation of rheological properties of metals is considered at numerical modeling processes of profile extrusion with high extrusion ratio. The existing ways of the mathematical description of … Read more
Analysis of torsion test by the finite element method Zbigniew Gronostajski Wroclaw University of Science and Technology . DOI: https://doi.org/10.7494/cmms.2002.2.0023 Abstract: Various conversion methods of torque and angle of rotation to flow stress and strain are presented in the paper. These methods were verified in mathematical modelling using the finite element method. Performed investigations show that … Read more