Numerical Simulation and Experimental Measurement of Residual Stresses in a Thick-Walled Buried-Arc Welded Pipe Structure
Mato Perić,
Ivica Garašić,
Nenad Gubeljak,
Zdenko Tonković,
Sandro Nižetić,
Krešimir Osman
Affiliations
Mato Perić
Department of Mechanical Engineering, University North, 104 Brigade 3, 42000 Varaždin, Croatia
Ivica Garašić
Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Ivana Lučića 5, 10000 Zagreb, Croatia
Nenad Gubeljak
Faculty of Mechanical Engineering, University of Maribor, Smatanova Ulica 17, 2000 Maribor, Slovenia
Zdenko Tonković
Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Ivana Lučića 5, 10000 Zagreb, Croatia
Sandro Nižetić
LTEF Laboratory of Thermodynamics and Energy Efficiency, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Split, Ruđera Boškovića 32, 21000 Split, Croatia
Krešimir Osman
Department of Electrical Engineering, Zagreb University of Applied Sciences, Konavoska 2, 10000 Zagreb, Croatia
In this study, a numerical simulation of a single pass welding of two thick-walled pipes with the buried-arc method was performed in order to determine the residual stresses caused by welding. The numerical simulation procedure in the thermal analysis was performed by the element birth and death method while the structural analysis was performed simultaneously, without the application of the element birth and death technique in order to reduce the duration of the numerical simulation. The simulation results were validated by experimental residual stress measurements on the outside surfaces of the welded model using the X-ray diffraction technique. A good agreement between the results of the numerical simulation and experimental measurements was confirmed.
