Numerical Simulation and Experimental Investigation of Temperature and Residual Stress Distributions in a Circular Patch Welded Structure
In this study, we performed a numerical simulation and experimental measurements on a steel circular patch welded structure to investigate the temperature and residual stress field distributions caused by the application of buried-arc welding technology. The temperature histories during the welding...
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doaj-93019f4b8590465a9b5942a5e6700cfb2020-11-25T02:45:35ZengMDPI AGEnergies1996-10732020-10-01135423542310.3390/en13205423Numerical Simulation and Experimental Investigation of Temperature and Residual Stress Distributions in a Circular Patch Welded StructureMato Perić0Sandro Nižetić1Zdenko Tonković2Ivica Garašić3Ivan Horvat4Ivanka Boras5Bestprojekt d.o.o., Bureau of Energetic and Mechanical Engineering Ltd., Petrovaradinska 7, 10000 Zagreb, CroatiaLTEF Laboratory for Thermodynamics and Energy Efficiency, Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture, University of Split, Ruđera Boškovića 32, 21000 Split, CroatiaFaculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Ivana Lučića 5, 10000 Zagreb, CroatiaFaculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Ivana Lučića 5, 10000 Zagreb, CroatiaFaculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Ivana Lučića 5, 10000 Zagreb, CroatiaFaculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Ivana Lučića 5, 10000 Zagreb, CroatiaIn this study, we performed a numerical simulation and experimental measurements on a steel circular patch welded structure to investigate the temperature and residual stress field distributions caused by the application of buried-arc welding technology. The temperature histories during the welding and subsequent cooling process were recorded for two locations, with the thermocouples mounted inside the plate close to the weld bead. On the upper surface of the welded model, the temperature-time changes during the cooling process were monitored using an infrared camera. The numerically calculated temperature values correlated well with the experimentally measured ones, while the maximum deviation of the measured and calculated temperatures was within 9%. Based on the numerical result analysis regarding circumferential and radial stresses after the completion of the welding process, it is concluded that both stresses are primarily tensile within the circular disk. Outside the disk, the circumferential stresses turn from tensile to compressive, while on the other hand the radial stresses disappear towards the ends of the plate.https://www.mdpi.com/1996-1073/13/20/5423MAG weldingburied-arc weldinginfrared camerathermocoupleswelding residual stressespatch weld |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Mato Perić Sandro Nižetić Zdenko Tonković Ivica Garašić Ivan Horvat Ivanka Boras |
spellingShingle |
Mato Perić Sandro Nižetić Zdenko Tonković Ivica Garašić Ivan Horvat Ivanka Boras Numerical Simulation and Experimental Investigation of Temperature and Residual Stress Distributions in a Circular Patch Welded Structure Energies MAG welding buried-arc welding infrared camera thermocouples welding residual stresses patch weld |
author_facet |
Mato Perić Sandro Nižetić Zdenko Tonković Ivica Garašić Ivan Horvat Ivanka Boras |
author_sort |
Mato Perić |
title |
Numerical Simulation and Experimental Investigation of Temperature and Residual Stress Distributions in a Circular Patch Welded Structure |
title_short |
Numerical Simulation and Experimental Investigation of Temperature and Residual Stress Distributions in a Circular Patch Welded Structure |
title_full |
Numerical Simulation and Experimental Investigation of Temperature and Residual Stress Distributions in a Circular Patch Welded Structure |
title_fullStr |
Numerical Simulation and Experimental Investigation of Temperature and Residual Stress Distributions in a Circular Patch Welded Structure |
title_full_unstemmed |
Numerical Simulation and Experimental Investigation of Temperature and Residual Stress Distributions in a Circular Patch Welded Structure |
title_sort |
numerical simulation and experimental investigation of temperature and residual stress distributions in a circular patch welded structure |
publisher |
MDPI AG |
series |
Energies |
issn |
1996-1073 |
publishDate |
2020-10-01 |
description |
In this study, we performed a numerical simulation and experimental measurements on a steel circular patch welded structure to investigate the temperature and residual stress field distributions caused by the application of buried-arc welding technology. The temperature histories during the welding and subsequent cooling process were recorded for two locations, with the thermocouples mounted inside the plate close to the weld bead. On the upper surface of the welded model, the temperature-time changes during the cooling process were monitored using an infrared camera. The numerically calculated temperature values correlated well with the experimentally measured ones, while the maximum deviation of the measured and calculated temperatures was within 9%. Based on the numerical result analysis regarding circumferential and radial stresses after the completion of the welding process, it is concluded that both stresses are primarily tensile within the circular disk. Outside the disk, the circumferential stresses turn from tensile to compressive, while on the other hand the radial stresses disappear towards the ends of the plate. |
topic |
MAG welding buried-arc welding infrared camera thermocouples welding residual stresses patch weld |
url |
https://www.mdpi.com/1996-1073/13/20/5423 |
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