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Warianty tytułu
Analiza numeryczna pól naprężeń generowanych procesem hartowania
Języki publikacji
Abstrakty
In work the presented numerical models of tool steel hardening processes take into account mechanical phenomena generated by thermal phenomena and phase transformations. In the model of mechanical phenomena, apart from thermal, plastic and structural strain, also transformations plasticity was taken into account. The stress and strain fields are obtained using the solution of the Finite Elements Method of the equilibrium equation in rate form. The thermophysical constants occurring in constitutive relation depend on temperature and phase composite. For determination of plastic strain the Huber-Misses condition with isotropic strengthening was applied whereas for determination of transformation plasticity a modified Leblond model was used. In order to evaluate the quality and usefulness of the presented models a numerical analysis of stresses and strains associated hardening process of a fang lathe of cone shaped made of tool steel was carried out.
W pracy przedstawiono model numeryczny procesu hartowania stali narzędziowej, w którym uwzględniono zjawiska mechaniczne generowane zjawiskami cieplnymi i przemianami fazowymi. W modelu zjawisk mechanicznych uwzględniono oprócz odkształceń termicznych, plastycznych i strukturalnych - również odkształcenia transformacyjne. Pola naprężeń i odkształceń uzyskuje się z rozwiązania metodą elementów skończonych równań równowagi w formie prędkościowej. Stałe termofizyczne występujące w związkach konstytutywnych uzależniono od temperatury i składu fazowego. Do wyznaczania odkształceń plastycznych wykorzystano warunek Hubera-Misesa ze wzmocnieniem izotropowym, natomiast do wyznaczania odkształceń transformacyjnych zastosowano zmodyfikowany model Leblonda. W celu oceny jakości i przydatności prezentowanego modelu dokonano analizy numerycznej pól temperatury, udziałów fazowych, naprężeń i odkształceń towarzyszących procesowi hartowania kła tokarki ze stali narzędziowej.
Czasopismo
Rocznik
Strony
13--18
Opis fizyczny
Bibliogr. 20 poz., rys., wykr.
Twórcy
autor
- Institute of Computer and Information Sciences, Czestochowa University of Technology, 42-200 Częstochowa, 73 Dąbrowskiego str., Poland
autor
- Institute of Mechanics and Machine Design, Czestochowa University of Technology, 42-200 Częstochowa, 73 Dąbrowskiego str., Poland
autor
- Institute of Mechanics and Machine Design, Czestochowa University of Technology, 42-200 Częstochowa, 73 Dąbrowskiego str., Poland
Bibliografia
- [1] S-H. Kang, Y.T. Im, Finite element investigation of multiphase transformation within carburized carbon steel. Journal of Materials Processing Technology 183, (2007) 241-248.
- [2] S-H. Kang, Y.T. Im, Three-dimensional thermo-elesticplastic finite element modeling of quenching process of plain carbon steel in couole with phase transformation. Journal of Materials Processing Technology 192-193, (2007) 381-390.
- [3] W.P Oliveira, M.A. Savi, P.M.C.L. Pacheco, L.F.G. Souza, Thermomechanical analysis of steel cylinders with diffusional and non-diffusional phase transformations. Mechanics of Materials 42 (2010) 31-43.
- [4] M. Coret, A. Combescure, A mesomodel for the numerical simulation of the multiphasic behavior of materials under anisothermal loading (application to two low-carbon steels), International Journal of Mechanical Sciences, 44, (2002) 1947-1963.
- [5] S.H. Kang, Y.T. Im, Thermo-elesto-plastic finite element analysis of quenching process of carbon steel. International Journal of Mechanical Sciences 49, (2007) 13-16.
- [6] A. Bokota, T. Domański, Numerical analysis of thermomechanical phenomena of hardening process of elements made of carbon steel C80U, Archives of Metallurgy and Materials Issue 2, vol. 52, (2007) 277-288.
- [7] M. Białecki, Characteristic of steels, series F, tom I, Silesia Editor, (1987) 108-129, 155-179, (in polish).
- [8] L. Taleb, F. Sidoroff, A micromechanical modelling of the Greenwood-Johnson mechanism in transformation induced plasticity, International Journal of Plasticity, 19, (2003) 1821-1842.
- [9] E.P. Silva, P.M.C.L. Pacheco, M.A. Savi, On the thermomechanical coupling in austenite-martensite phase transformation related to the quenching process, International Journal of Solids and Structures, 41, (2004) 1139-1155.
- [10] M. Suliga, Z. Muskalski, The influence of single draft on TRIP effect and mechanical propertiesof 0.09C-1.57Mn-0.9Si steel wires. Archives of Metallurgy and Materials, Issue 3, vol. 54, (2009) 677-684.
- [11] M. Cherkaoui, M. Berveiller, H. Sabar, Micromechanical modeling of martensitic transformation induced plasticity (TRIP) in austenitic single crystals, International Journal of Plasticity, vol 14, no. 7, (1998) 597-626.
- [12] O.C. Zienkiewicz, R.L. Taylor, The finite element method, Butterworth-Heinemann, Fifth edition, vol. 1,2 (2000).
- [13] B. Raniecki, A. Bokota, S. Iskierka, R. Parkitny, Problem of Determination of Transient and Residual Stresses in a Cylinder under Progressive Induction Hardening. Proceedings of 3rd International Conference On Quenching And Control of Distortion. Published by ASM International, (1999) 473-484.
- [14] S. Serejzadeh, Modeling of temperature history and phase transformation during cooling of steel, Journal of Processing Technology, 146, (2004) 311-317.
- [15] L. Huiping, Z. Guoqun, N. Shanting, H. Chuanzhen, FEM simulation of quenching process and experimental verification of simulation results, Material Science and Engineering A 452-453, (2007) 705-714.
- [16] D.Y. Ju, W.M. Zhang, Y. Zhang, Modeling and experimental verification of martensitic transformation plastic behavior in carbon steel for quenching process, Material Science and Engineering A 438-440, (2006) 246-250.
- [17] T. Domański, A. Bokota, A numerical model to predict microstructure of heat treated of steel element. Archives of Foundry Engineering, Vol 11,. Issue x, (2011), xx-xx (in printed).
- [18] A. Bokota, S. Iskierka, Numerical analysis of phase transformation and residual stresses in steel cone-shaped elements hardened by induction and flame methods. International Journal of Mechanical Sciences, 40 (6) (1998) 617-629.
- [19] M. Coret, S. Calloch, A. Combescure, Experimental study of the phase transformation plasticity of 16MND5 low carbon steel induced by proportional and nonproportional biaxial loading paths. European Journal of Mechanics A/Solids 23, (2004) 823-842.
- [20] J. Jasiński, Influence of fluidized bed on diffusional processes of saturation of steel surface layer. Seria: Inżynieria Materiałowa Nr 6, Editor WIPMiFS, Częstochowa (2003), (in polish).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-98a25bf7-a9ab-4774-8fc6-b5c8ea45160e