@inproceedings{DoynovOssenbrinkKlosheketal., author = {Doynov, Nikolay and Ossenbrink, Ralf and Kloshek, Alexander and Michailov, Vesselin}, title = {Simulation of the Welding Distortions in Large Welded Structures}, language = {en} } @inproceedings{DeflorioKlinglerBrinkmannetal., author = {Deflorio, Andrea and Klingler, M. and Brinkmann, D. and Michailov, Vesselin}, title = {Laser Beam Welding Simulation with two Different Approaches}, series = {Mathematical modelling of weld phenomena 8}, booktitle = {Mathematical modelling of weld phenomena 8}, editor = {Cerjak, Horst-Hannes}, publisher = {Verl. der Techn. Univ. Graz}, address = {Graz}, isbn = {978-3-902465-69-6}, language = {en} } @inproceedings{OssenbrinkMichailov, author = {Ossenbrink, Ralf and Michailov, Vesselin}, title = {Thermomechanical Numerical Simulation with the Maximum Temperature Austenisation Cooling Time Model (STAAZ)}, series = {Mathematical modelling of weld phenomena}, booktitle = {Mathematical modelling of weld phenomena}, editor = {Cerjak, Horst-Hannes}, publisher = {Verl. der Techn. Univ. Graz}, address = {Graz}, isbn = {978-3-902465-69-6}, language = {en} } @inproceedings{StadtausDoynovMichailov, author = {Stadtaus, Marc and Doynov, Nikolay and Michailov, Vesselin}, title = {Investigation of the Modified CTS-Test for the Prediction of Cold Cracking Susceptibility by Numerical Models}, series = {Mathematical modelling of weld phenomena 8}, booktitle = {Mathematical modelling of weld phenomena 8}, editor = {Cerjak, Horst-Hannes}, publisher = {Verl. der Techn. Univ. Graz}, address = {Graz}, isbn = {978-3-902465-69-6}, language = {en} } @inproceedings{KarkhinLevchenkoHomichetal., author = {Karkhin, Victor A. and Levchenko, A. M. and Homich, P. N. and Michailov, Vesselin}, title = {Computer-Aided Determination of Diffusible Hydrogen in Deposited Weld Metal}, series = {Mathematical Modelling of Weld Phenomena 8}, booktitle = {Mathematical Modelling of Weld Phenomena 8}, editor = {Cerjak, Horst-Hannes}, publisher = {Verl. der Techn. Univ. Graz}, address = {Graz}, isbn = {978-3-902465-69-6}, pages = {785 -- 798}, language = {en} } @inproceedings{KarkhinHomichMichailov, author = {Karkhin, Victor A. and Homich, P. N. and Michailov, Vesselin}, title = {Models for Volume Heat Sources and Functional-Analytical Technique for Calculating the Temperature Fields in Butt Welding}, series = {Mathematical modelling of weld phenomena 8}, booktitle = {Mathematical modelling of weld phenomena 8}, editor = {Cerjak, Horst-Hannes}, publisher = {Verl. der Techn. Univ. Graz}, address = {Graz}, isbn = {978-3-902465-69-6}, language = {en} } @inproceedings{DoynovOssenbrinkSchmidtetal., author = {Doynov, Nikolay and Ossenbrink, Ralf and Schmidt, J. and Michailov, Vesselin}, title = {Utilization of Weld Pool Models in Thermal-Mechanical Simulations}, series = {Mathematical modelling of weld phenomena 8}, booktitle = {Mathematical modelling of weld phenomena 8}, publisher = {Verl. der Techn. Univ. Graz}, address = {Graz}, isbn = {978-3-902465-69-6}, language = {en} } @inproceedings{SchwenkRethmeierDilgeretal., author = {Schwenk, C. and Rethmeier, M. and Dilger, Klaus and Michailov, Vesselin}, title = {Sensitivity Analysis of Welding Simulation Depending on Material Properties Value Variation}, series = {Mathematical modelling of weld phenomena 8}, booktitle = {Mathematical modelling of weld phenomena 8}, editor = {Cerjak, Horst-Hannes}, publisher = {Verl. der Techn. Univ. Graz}, address = {Graz}, isbn = {978-3-902465-69-6}, language = {en} } @inproceedings{KarkhinHomichMichailov, author = {Karkhin, Victor A. and Homich, P. N. and Michailov, Vesselin}, title = {Analytical-Experimental Technique for Calculating the Temperature Fields in Laser Welding}, series = {11th Nolamp Conference in Laser Processing of Materials, August 20-22, 2007 Lappeenranta}, booktitle = {11th Nolamp Conference in Laser Processing of Materials, August 20-22, 2007 Lappeenranta}, pages = {21 -- 27}, language = {en} } @inproceedings{StapelfeldDoynovAtanasovaetal., author = {Stapelfeld, Christoph and Doynov, Nikolay and Atanasova, D. and Michailov, Vesselin}, title = {Calculation of Welding Distortions in Large Structures Using the Maximum Temperature Model and the Coupled Analytic-Numerical Shrinkage Force Model}, series = {ESI Global Forum 2010, 19. - 20. Mai 2010, M{\"u}nchen}, booktitle = {ESI Global Forum 2010, 19. - 20. Mai 2010, M{\"u}nchen}, language = {en} } @misc{BokuchavaPetrovGenchevetal., author = {Bokuchava, Gizo and Petrov, Peter and Genchev, Gancho Vladimirov and Michailov, Vesselin and Doynov, Nikolay and Ossenbrink, Ralf}, title = {Residual stress analysis in welded joints by neutron difffraction and comouter modeling}, series = {Romanian Journal of Physics}, volume = {Vol. 63}, journal = {Romanian Journal of Physics}, number = {7-8}, issn = {1221-146X}, pages = {16}, abstract = {Numerical models for thermo-mechanical simulation of the welding residual stresses in laser beam and multi-pass arc welded joints are developed. The models describe the resulting microstructure as a function of the peak temperature, austenization time, cooling time and take into account the microstructure formed after single or multiple thermal cycles. The results of simulations are validated by neutron diffraction experiments performed on FSD diffractometer at the IBR-2 pulsed reactor in FLNP JINR (Dubna, Russia). The elaborated numerical models are in good agreement with obtained neutron diffraction data, which enable to study the influence of different conditions and process parameters on the distribution of residual welding stresses.}, language = {en} } @misc{BobryninaLarionovaKoltsovaetal., author = {Bobrynina, E. V. and Larionova, T. V. and Koltsova, Tatiana S. and Ginzburg, S. A. and Michailov, Vesselin}, title = {Effect of alumina addition on weld deposits microstructure at the welding of carbon steel}, series = {Materials Physics and Mechanics}, volume = {Vol. 38}, journal = {Materials Physics and Mechanics}, number = {1}, issn = {1605-8119}, doi = {10.18720/MPM.3812018_4}, pages = {26 -- 32}, abstract = {The formation of acicular ferrite in the structure of weld deposits when welding carbon steels is often associated with the introduction of nonmetallic additives into the electrode material. Fe-alumina composite powders with alumina particles less than 1 µm were used as a filler for cored welding wire and the influence of aluminum oxide additives up to 2,5 wt.\% on the structure of the welded seam was studied. It was shown that the addition of aluminum oxide to the welding wire led to the initiation of the formation of intragranular acicular ferrite in the weld deposit and to a more even distribution of hardness through the zones of weld seam.}, language = {en} }