Autor: Winczek, M. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: The modelling of temperature-dependent stress-strain curves for weldable steels
Autorzy:: Winczek, J.
Mičian, M.
Ivanov, V.
Powiązania:: https://bibliotekanauki.pl/articles/122437.pdf
Data publikacji:: 2018
Wydawca:: Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
Tematy:: modelling
thermomechanics
stress-strain curve
spawanie stali
modelowanie
termomechanika
krzywa naprężenie-odkształcenie
stal spawalna
właściwości mechaniczne
Opis:: The calculation of stresses in the steel elements subjected to the thermomechanical loads requires taking into account the influence of temperature on mechanical properties of a material, including the stress-strain curve. The simplified and extended computational models of temperature-dependent tensile curves have been discussed. The methodology of the stress-strain curve construction in the entire temperature range of the solid state of the material has been proposed. The considerations are illustrated by the examples of calculated stress-strain curves in different temperatures for S235 and S355 welding steels.
Źródło:: Journal of Applied Mathematics and Computational Mechanics; 2018, 17, 3; 111-117
2299-9965
Pojawia się w:: Journal of Applied Mathematics and Computational Mechanics
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Analysis of thermal cycles and phase transformations during multi-pass ARC weld surfacing of steel casts taking into account heat of the weld
Autorzy:: Winczek, J.
Gucwa, M.
Makles, K.
Powiązania:: https://bibliotekanauki.pl/articles/122834.pdf
Data publikacji:: 2018
Wydawca:: Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
Tematy:: surface treatment
temperature field
phase transformations
welding
surfacing
obróbka powierzchniowa
przemiany fazowe
pole temperatury
spawanie
napawanie
Opis:: In this work, a model of phase transformations during multipass weld surfaced steel casts is presented. In the temperature field calculation algorithm, the influence of the heat of overlaying beads and a self-cooling of previously overlayed beads have been taken into account. The fusion area, full and part transformation zones, by solidus, A₁ and A₃ and A A₁ temperatures has been determined, respectively. The temperatures of the beginning and the end of the phase changes during cooling were determined on the basis of the time-temperature-transformation welding diagram. In the phase change kinetic description, the JMAK law and KM formula were used. Theoretical considerations are illustrated by example of volume share calculations of particular structural components during the weld surfaced 230-450 W steel cast. The results of computation in the graphical forms are presented: welding thermal cycle diagrams and structural share change histories at selected points, as well as temperature and the phase share distributions in cross section.
Źródło:: Journal of Applied Mathematics and Computational Mechanics; 2018, 17, 1; 89-100
2299-9965
Pojawia się w:: Journal of Applied Mathematics and Computational Mechanics
Dostawca treści:: Biblioteka Nauki

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