Abstract
Due to varying temperature distribution of welding area during welding process, thermal stress is generated. It is known that the thermal stress forms residual stress. The welding residual stress has an important effect on welding deformation, embrittlement fracture, fatigue fracture, etc. In this paper, residual stress due to welding was numerically investigated by finite element method. To verify the results of numerical analysis, the residual stress of high tensile steel was measured by the hole-drilling method. Temperature change experimentally measured at the location of 3-mm-off-weld-bead, in addition, was compared with the numerical analysis. The above methodologies were applied to H-plate with 13.5mm thickness through MIG welding process. The distributions of the residual stress and the temperature distributions from the experimental and the numerical analyses were confirmed to be close.
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Seok, CS., Suh, MW. & Park, JH. Investigation of welding residual stress of high tensile steel by finite element method and experiment. KSME International Journal 13, 879–885 (1999). https://doi.org/10.1007/BF03184755
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DOI: https://doi.org/10.1007/BF03184755