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Weld Distortion Estimation in Combined Butt and Fillet Weld Joint Using Finite Element Analysis
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Weld distortion is one of the important quality measures and due to non-linearity of influencing variables it is difficult to predict its behavior. A three dimensional Thermo Mechanical Finite Element Analysis is proposed to estimate the angular distortion in combined butt and fillet weld joint. Different weld sequences are considered to study their effects on distortion. The geometry is modeled using SYSWELD and simulated using Visual Weld. Temperature dependent material properties and nonlinear stress-strain behavior are considered. Moving heat source is modeled as double ellipsoidal volumetric source. The effect of different sequences on angular distortion is reported.
Keywords
Finite Element Method, Weld Distortion, Gas Metal Arc Welding.
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