Finite-Element approaching to investigate residual stresses of fillet welded longitudinal attachment

The Finite-Element investigation method of welding residual stress uses the 2-way analysis method, first by applying thermal modeling and second by structural modeling. In this study, optimal parameters for numerical modeling are 6 mm global specimen model meshing size, welding input power efficienc...

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Bibliographic Details
Main Authors: Pamungkas, Nurman, Wibowo, Ari, Leksonowati, Nur Fitria Pujo
Format: Conference Proceeding
Language:English
Subjects:
Finite element method
Isotropic material
Material properties
Mathematical models
Numerical models
Power efficiency
Residual stress
Thermal analysis
Welding
Yield stress
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Summary:The Finite-Element investigation method of welding residual stress uses the 2-way analysis method, first by applying thermal modeling and second by structural modeling. In this study, optimal parameters for numerical modeling are 6 mm global specimen model meshing size, welding input power efficiency by 70%, convection film coefficient by 15 W/m2K, and the application of multilinear isotropic hardening to the material properties. Comparing to the physical experiment, this numerical investigation provides the highest residual stress in the main plate obtain by 1.01 yield stress in the weld toe area, as far from weld toe residual stresses reduced gradually. While the residual stresses characteristic at longitudinal direction on both the simulation and experiment, qualitatively, have the same result and pattern.
ISSN:0094-243X
1551-7616
DOI:10.1063/5.0126550