IAM - Computational Materials Science
oleg_tschukin

Dr. Oleg Tschukin

Forschung

Quantitative modeling of phase transformations in phase field approach (Electron Beam Welding)

  • Modeling/Simulations of macroscopic heat conduction with heat source due to the electron beam
  • Approximation of superimposed exact solution with appropriate functions
  • Temperature dependent kinetic models the grain growth in heat affected zone
  • Modeling/simulations of nucleation and grain growth in weld bath

Oleg_Tsukin_Quantitative

 

Quantitative modeling of phase transformations
in phase field approach (elasto-chemical model)

  • Homogeneous variables with respect to the consistent jump conditions on the interface
  • New formulation of
    • Free elastic energy
    • Local homogenized stiffness tensor
    • Stress tensor
    • Driving force for phase transformation
  • Quantitative coupling of chemical grand potential and new elastic models
  • Validation and verification of the new model

 

 

Publikationsliste


Morphological stability of rod-shaped continuous phases.
Wang, F.; Tschukin, O.; Leisner, T.; Zhang, H.; Nestler, B.; Selzer, M.; Cadilha Marques, G.; Aghassi-Hagmann, J.
2020. Acta materialia, 192, 20–29. doi:10.1016/j.actamat.2020.04.028
An elasto-chemical phase-field model for isotropic solids.
Tschukin, O.; Schneider, D.; Nestler, B.
2018. European journal of mechanics / A, 73, 181–191. doi:10.1016/j.euromechsol.2018.06.014
Correction to: Small strain multiphase-field model accounting for configurational forces and mechanical jump conditions.
Schneider, D.; Schoof, E.; Tschukin, O.; Reiter, A.; Herrmann, C.; Schwab, F.; Selzer, M.; Nestler, B.
2018. Computational mechanics, 61 (3), 297. doi:10.1007/s00466-017-1485-1
Small strain multiphase-field model accounting for configurational forces and mechanical jump conditions.
Schneider, D.; Schoof, E.; Tschukin, O.; Reiter, A.; Herrmann, C.; Schwab, F.; Selzer, M.; Nestler, B.
2018. Computational mechanics, 61 (3), 277–295. doi:10.1007/s00466-017-1458-4
Concepts of modeling surface energy anisotropy in phase-field approaches.
Tschukin, O.; Silberzahn, A.; Selzer, M.; Amos, P. G. K.; Schneider, D.; Nestler, B.
2017. Geothermal Energy, 5 (1), Art.Nr. 19. doi:10.1186/s40517-017-0077-9
Numerical and experimental investigations on the growth of the intermetallic Mg₂Si phase in Mg infiltrated Si-foams.
Wang, F.; Matz, A. M.; Tschukin, O.; Heimann, J.; Mocker, B. S.; Nestler, B.; Jost, N.
2017. Advanced engineering materials, 19 (10), Art.Nr. 1700063. doi:10.1002/adem.201700063
On stress and driving force calculation within phase-field models : Applications to martensitic phase transformation and crack propagation in multiphase systems.
Schneider, D.; Schoof, E.; Tschukin, T.; Schwab, F.; Selzer, M.; Nestler, B.
2016. Interdisziplinäres Seminar Mathematik und Mechanik, Kaiserslautern, Deutschland, 2016
Calibration of a multi-phase field model with quantitative angle measurement.
Hötzer, J.; Tschukin, O.; Ben Said, M.; Berghoff, M.; Jainta, M.; Barthelemy, G.; Smorchkov, N.; Schneider, D.; Selzer, M.; Nestler, B.
2016. Journal of materials science, 51 (4), 1788–1797. doi:10.1007/s10853-015-9542-7
Elasto-plastic phase-field model accounting for mechanical jump conditions during solid-state phase transformations.
Schneider, D.; Tschukin, O.; Choudhury, A.; Selzer, M.; Nestler, B.
2015. International Conference on Solid-Solid Phase Transformations in Inorganic Materials (PTM), Whistler, Canada, 28th June - 3rd July 2015
Elasto-plastic phase-field model based on mechanical jump conditions.
Schneider, D.; Tschukin, O.; Selzer, M.; Nestler, B.
2015. 2. GAMM Seminar on Phase-Field-Modelling, Siegen University, Germany, 5th - 6th February 2015
Elastoplastic phase-field model accounting for mechanical jump conditions during solid-state phase transformations.
Schneider, D.; Tschukin, O.; Schoof, E.; Choudhury, A.; Selzer, M.; Nestler, B.
2015. PTM 2015 : International Conference on Solid-Solid Phase Transformations in Inorganic Materials, Westin Whistler Resort & Spa, Canada, 28th June - 3rd July 2015
Elastoplastic phase-field model accounting for mechanical jump conditions during solid-state phase transformations.
Schneider, D.; Tschukin, O.; Schoof, E.; Choudhury, A.; Selzer, M.; Nestler, B.
2015. ICM12 : 12th International Conference on the Mechanical Behavior of Materials, Karlsruhe, Germany, 10th - 14th May 2015
Phase-Field Modeling of Solid-Solid Phase Transformations.
Schneider, D.; Kumar, A.; Tschukin, O.; Selzer, M.; Nestler, B.
2015. ESMC9 : 9th European Solid Mechanics Conference, Madrid, Spain, 6th - 10th July 2015
Elasto-plastic phase-field model accounting for mechanical jump conditions during solid-state phase transformations.
Schneider, D.; Tschukin, O.; Choudhury, A.; Selzer, M.; Nestler, B.
2015. Proceedings of the International Conference on Solid-Solid Phase Transformations in Inorganic Materials 2015 (PTM), Whistler, Canada, 28th June - 3rd July 2015. Ed.: M. Militzer, 899–900, PTM, Whistler (British Columbia)
Phase-field elasticity model based on mechanical jump conditions.
Schneider, D.; Tschukin, O.; Choudhury, A.; Selzer, M.; Böhlke, T.; Nestler, B.
2015. Computational mechanics, 55 (5), 887–901. doi:10.1007/s00466-015-1141-6
Phasenfeldmodellierung der Spannungsentwicklung in heterogenen Gefügen.
Schneider, D.; Tschukin, O.; Choudhury, A.; Selzer, M.; Nestler, B.
2014. Sitzung Fachausschuss Computersimulation, Bochum, Deutschland, 2014
Phase-field modeling of stress evolution in heterogen structures.
Schneider, D.; Tschukin, O.; Choudhury, A.; Selzer, M.; Nestler, B.
2014. 11th World Congress on Computational Mechanics, Barcelona, Spain, 20–25 July 2014
Virtuelle Material- und Prozessentwicklung am Beispiel der Konstrukturausbildung in Schweißnähten.
Nestler, B.; Tschukin, O.; Jainta, M.; Daubermann, M.; Selzer, M.; Widak, V.; Hoffmann, J.; Rieth, M.
2014. Forschungsreport für den Maschinenbau in Baden-Württemberg, 2014, 56–58
Modelling of transient heat conduction with diffuse interface methods.
Ettrich, J.; Choudhury, A.; Tschukin, O.; Schoof, E.; August, A.; Nestler, B.
2014. Modelling and simulation in materials science and engineering, 22 (8), Art.Nr. 085006/1–29. doi:10.1088/0965-0393/22/8/085006