Application of low transformation-temperature filler to reduce the residual stresses in welded component
Tensile residual stress is a major issue in integrity of the welded structures. Undesirable tensile residual stress in welding may reduce fracture toughness and fatigue life of welded structures. The low transformation-temperature (LTT) fillers, due to introducing compressive residual stresses cause...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Universiti Malaysia Pahang Publishing
2019-03-01
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| Series: | Journal of Mechanical Engineering and Sciences |
| Subjects: | |
| Online Access: | https://journal.ump.edu.my/jmes/article/view/1835 |
| _version_ | 1827827073168703488 |
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| author | K. Azizpour H. Moshayedi I. Sattari-far |
| author_facet | K. Azizpour H. Moshayedi I. Sattari-far |
| author_sort | K. Azizpour |
| collection | DOAJ |
| description | Tensile residual stress is a major issue in integrity of the welded structures. Undesirable tensile residual stress in welding may reduce fracture toughness and fatigue life of welded structures. The low transformation-temperature (LTT) fillers, due to introducing compressive residual stresses caused by prior martensitic transformation, can reduce tensile residual stresses in the weld zone. The effects of using LTT fillers on welding residual stresses of high strength steel sheets are studied and compared with conventional fillers. 3D finite element simulations including coupled thermal-metallurgical-mechanical analyses are developed using SYSWELD software to predict the welding residual stresses. For validation of the finite element model, the residual stresses are measured through hole drilling strain gage method. The results indicate that using the LTT fillers cause a decrease of the longitudinal tensile residual stresses of the weld metal from 554 MPa to 216 MPa in comparison with conventional fillers. The transverse residual stresses of the weld line are changed from tensile 156 MPa to compressive 289 MPa with using LTT fillers instead of conventional fillers. |
| first_indexed | 2024-03-12T03:21:47Z |
| format | Article |
| id | doaj.art-56746f5b021b4935b3442efeac8df3ee |
| institution | Directory Open Access Journal |
| issn | 2289-4659 2231-8380 |
| language | English |
| last_indexed | 2024-03-12T03:21:47Z |
| publishDate | 2019-03-01 |
| publisher | Universiti Malaysia Pahang Publishing |
| record_format | Article |
| series | Journal of Mechanical Engineering and Sciences |
| spelling | doaj.art-56746f5b021b4935b3442efeac8df3ee2023-09-03T13:56:53ZengUniversiti Malaysia Pahang PublishingJournal of Mechanical Engineering and Sciences2289-46592231-83802019-03-011314536455710.15282/jmes.13.1.2019.14.0384Application of low transformation-temperature filler to reduce the residual stresses in welded componentK. Azizpour0H. Moshayedi1I. Sattari-far2Mechanical Engineering Department, Amirkabir University of Technology, Tehran, IranYoung Researchers and Elite Club, Buinzahra Branch, Islamic Azad University, Buinzahra, IranMechanical Engineering Department, Amirkabir University of Technology, Tehran, IranTensile residual stress is a major issue in integrity of the welded structures. Undesirable tensile residual stress in welding may reduce fracture toughness and fatigue life of welded structures. The low transformation-temperature (LTT) fillers, due to introducing compressive residual stresses caused by prior martensitic transformation, can reduce tensile residual stresses in the weld zone. The effects of using LTT fillers on welding residual stresses of high strength steel sheets are studied and compared with conventional fillers. 3D finite element simulations including coupled thermal-metallurgical-mechanical analyses are developed using SYSWELD software to predict the welding residual stresses. For validation of the finite element model, the residual stresses are measured through hole drilling strain gage method. The results indicate that using the LTT fillers cause a decrease of the longitudinal tensile residual stresses of the weld metal from 554 MPa to 216 MPa in comparison with conventional fillers. The transverse residual stresses of the weld line are changed from tensile 156 MPa to compressive 289 MPa with using LTT fillers instead of conventional fillers.https://journal.ump.edu.my/jmes/article/view/1835welding residual stresslow transformation-temperature fillerfinite element simulationcoupled thermal-metallurgical-mechanical analysesphase transformation |
| spellingShingle | K. Azizpour H. Moshayedi I. Sattari-far Application of low transformation-temperature filler to reduce the residual stresses in welded component Journal of Mechanical Engineering and Sciences welding residual stress low transformation-temperature filler finite element simulation coupled thermal-metallurgical-mechanical analyses phase transformation |
| title | Application of low transformation-temperature filler to reduce the residual stresses in welded component |
| title_full | Application of low transformation-temperature filler to reduce the residual stresses in welded component |
| title_fullStr | Application of low transformation-temperature filler to reduce the residual stresses in welded component |
| title_full_unstemmed | Application of low transformation-temperature filler to reduce the residual stresses in welded component |
| title_short | Application of low transformation-temperature filler to reduce the residual stresses in welded component |
| title_sort | application of low transformation temperature filler to reduce the residual stresses in welded component |
| topic | welding residual stress low transformation-temperature filler finite element simulation coupled thermal-metallurgical-mechanical analyses phase transformation |
| url | https://journal.ump.edu.my/jmes/article/view/1835 |
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