- Tytuł:
- Methodology of Comparative Validation of Selected Foundry Simulation Codes
- Autorzy:
-
Ignaszak, Z.
Popielarski, P.
Hajkowski, J.
Codina, E. - Powiązania:
- https://bibliotekanauki.pl/articles/379771.pdf
- Data publikacji:
- 2015
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
solidification process
castings defect
simulation codes
cast iron
macromodel
micro model
proces krzepnięcia
wada odlewu
żeliwo
model makro
model mikro - Opis:
- The validation of each simulation code used in foundry domain requires individual approach due to its specificity. This validation can by elaborated on the basis of experimental results or in particular cases by comparison the simulation results from different codes. The article concerns the influence of grey cast iron density curve and different forms of solid fraction curve Fs=f(T) on the formation of shrinkage discontinuities. Solid fraction curves applying Newtonian Thermal Analysis (NTA) were estimated. The experimental and numerical simulation tests were performed on the castings, which were made with Derivative Thermal Analysis (DerTA) standard cups. The numerical tests were realized using NovaFlow&Solid (NF&S), ProCast and Vulcan codes. In this work, the coupled influence of both curves on the dynamics of the shrinkage-expansion phenomena and on shrinkage defects prognosis in grey cast iron castings has been revealed. The final evaluation of the simulation systems usefulness should be based on validation experiment, preceded by comparing the simulation results of available systems which are proposed in given technology.
- Źródło:
-
Archives of Foundry Engineering; 2015, 15, 4; 37-44
1897-3310
2299-2944 - Pojawia się w:
- Archives of Foundry Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł