Technical gazette, Vol. 25 No. 1, 2018.
Original scientific paper
https://doi.org/10.17559/TV-20160225102519
Analytical Algorithm Expressions in Simulation of the Temperature Field in Electric Resistance Spot Welding
Miomir Vukićević
; Faculty of Mechanical and Civil Engineering in Kraljevo, University of Kragujevac, Dositejeva 19, 36000 Kraljevo, Serbia
Mišo Bjelić
orcid.org/0000-0002-6148-1982
; Faculty of Mechanical and Civil Engineering in Kraljevo, University of Kragujevac, Dositejeva 19, 36000 Kraljevo, Serbia
Dragan Milčić
; Faculty of Mechanical Engineering, University of Niš, Aleksandra Medvedeva 14, 18000 Niš, Serbia
Miroslav Mijajlović
orcid.org/0000-0001-9185-8296
; Faculty of Mechanical Engineering, University of Niš, Aleksandra Medvedeva 14, 18000 Niš, Serbia
Marina Pljakić
orcid.org/0000-0002-1576-7613
; Faculty of Mechanical and Civil Engineering in Kraljevo, University of Kragujevac, Dositejeva 19, 36000 Kraljevo, Serbia
Abstract
The paper presents the method of obtaining mathematical equations named "Analytical algorithm expressions" which enable simple creation of computer programs for simulation of the temperature field in the weld zone in electric resistance spot welding. Knowledge of these equations and the manner of their formulation make creation of program packages easier but they do not change anything with respect to the structure and scope of necessary input data which determine concrete initial and boundary conditions. In addition to providing algorithm description of the temperature field, the considered approach is applied for mathematical description of the field of any other physical value relevant for the welding process (specific current, electric potential, density, etc.). In this paper they are realized in temperature fields, as hierarchically superior to the fields of stress and current density, i.e. fields of physical properties of materials of the sheet and the electrode (superiority refers to the algorithm domain). Results of simulation for the non-stationary period of the welding process at two extreme discreet moments are presented at the end.
Keywords
analytical algorithm expressions; electric resistance spot welding; iterative procedure; finite differences; non-stationary part of the process; simulation; station-ary part of the process; temperature field
Hrčak ID:
193595
URI
Publication date:
10.2.2018.
Visits: 1.913 *