Through Thickness and Surface Stress Distribution for Welded Tubular T-Joint Using Finite Element Analysis
The finite element method is considered to be the most powerful and versatile discretization technique available for numerical solution of complex tubular joints, for the offshore structures. Existing literature on the analysis of tubular joints is limited to the use of two dimensional plate/shell elements, which neglect the displacement variation across the wall thickness. Also, the plate/shell element idealization does not permit consideration of the weld profile and the actual chord/brace interaction. The present investigation describes the analytical studies on the variation of stresses along the chord/brace surfaces at critical points and across the chord wall of the tubular T-joints loaded through the brace, axially and in in-plane bending.
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