Temat: finite element method simulation - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Computer Simulation of the Relationship between Selected Properties of PVD Coatings
Autorzy:: Śliwa, A.
Kwaśny, W.
Sitek, W.
Bonek, M.
Powiązania:: https://bibliotekanauki.pl/articles/351597.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: numerical techniques
stresses
microhardness
computer simulation
finite element method
Opis:: The possibility to apply the Finite Element Method to calculate internal stresses which occur in Ti+TiN, Ti+Ti(C_xN_1-x) and Ti+TiC coatings obtained in the magnetron PVD process on the sintered high-speed steel of the PM HS6-5-3-8 type. For the purpose of computer simulation of internal stresses in coatings with the use of MES, the correct model of analyzed specimens was worked out and then it was experimentally verified by comparison of calculation results with the results of computer simulation. Accurate analysis of correlations indicated especially strong dependence between internal stresses and microhardness and between microhardness and erosion resistance what created conditions for establishing the dependence between internal stresses obtained in the result of computer simulation and erosion resistance as basic functional quality of coating. It has essential practical meaning because it allows to estimate predictable erosion resistance of coating exclusively on the base of the results of computer simulation for used parameters in the process of coating manufacturing.
Źródło:: Archives of Metallurgy and Materials; 2016, 61, 2A; 481-484
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: A Multiscale Model of Heating-Remelting-Cooling in the Gleeble 3800 Thermo-Mechanical Simulator System
Autorzy:: Hojny, M.
Głowacki, M.
Bała, P.
Bednarczyk, W.
Zalecki, W.
Powiązania:: https://bibliotekanauki.pl/articles/353788.pdf
Data publikacji:: 2019
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: DEFFEM package
finite element method
Monte Carlo method
physical simulation
computer simulation
mushy-zone
extra-high temperatures
Opis:: The paper presents a multi-scale mathematical model dedicated to a comprehensive simulation of resistance heating combined with the melting and controlled cooling of steel samples. Experiments in order to verify the formulated numerical model were performed using a Gleeble 3800 thermo-mechanical simulator. The model for the macro scale was based upon the solution of Fourier-Kirchhoff equation as regards predicting the distribution of temperature fields within the volume of the sample. The macro scale solution is complemented by a functional model generating voluminal heat sources, resulting from the electric current flowing through the sample. The model for the micro-scale, concerning the grain growth simulation, is based upon the probabilistic Monte Carlo algorithm, and on the minimization of the system energy. The model takes into account the forming mushy zone, where grains degrade at the melting stage – it is a unique feature of the micro-solution. The solution domains are coupled by the interpolation of node temperatures of the finite element mesh (the macro model) onto the Monte Carlo cells (micro model). The paper is complemented with examples of resistance heating results and macro- and micro-structural tests, along with test computations concerning the estimation of the range of zones with diverse dynamics of grain growth.
Źródło:: Archives of Metallurgy and Materials; 2019, 64, 1; 401-412
1733-3490
Pojawia się w:: Archives of Metallurgy and Materials
Dostawca treści:: Biblioteka Nauki

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