TY - CHAP A1 - Doynov, Nikolay A1 - Ossenbrink, Ralf A1 - Kloshek, Alexander A1 - Michailov, Vesselin T1 - Simulation of the Welding Distortions in Large Welded Structures KW - Simulation KW - Welding Distortions KW - Distortions KW - Welded Structures KW - welding KW - schweißen KW - fügen KW - Simulation KW - Fügetechnik Y1 - 2007 UR - http://www.fabtechexpo.com ER - TY - CHAP A1 - Ossenbrink, Ralf A1 - Michailov, Vesselin ED - Cerjak, Horst-Hannes T1 - Thermomechanical Numerical Simulation with the Maximum Temperature Austenisation Cooling Time Model (STAAZ) T2 - Mathematical modelling of weld phenomena KW - thermomechanical numerical simulation KW - thermomechanical KW - simulation KW - welding KW - fügen KW - schweißen KW - Fügetechnik Y1 - 2007 SN - 978-3-902465-69-6 PB - Verl. der Techn. Univ. Graz CY - Graz ER - TY - CHAP A1 - Doynov, Nikolay A1 - Ossenbrink, Ralf A1 - Schmidt, J. A1 - Michailov, Vesselin T1 - Utilization of Weld Pool Models in Thermal-Mechanical Simulations T2 - Mathematical modelling of weld phenomena 8 KW - weld pool models KW - model KW - thermal-mechanical simulation KW - simulation KW - welding KW - fügen KW - schweißen KW - Fügetechnik Y1 - 2007 SN - 978-3-902465-69-6 PB - Verl. der Techn. Univ. Graz CY - Graz ER - TY - GEN A1 - Bokuchava, Gizo A1 - Petrov, Peter A1 - Genchev, Gancho Vladimirov A1 - Michailov, Vesselin A1 - Doynov, Nikolay A1 - Ossenbrink, Ralf T1 - Residual stress analysis in welded joints by neutron difffraction and comouter modeling T2 - Romanian Journal of Physics N2 - 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. KW - residual stress KW - neutron diffraction KW - computer modeling KW - welding Y1 - 2018 SN - 1221-146X VL - Vol. 63 IS - 7-8 ER -