Stress concentrations in multi-planar welded CHS XX-connections

Geometrical effect on SCF distribution in uni-planar tubular DKT-joints under axial loads

“…Chang and Dover [21] repeated the previous study for tubular X-and DT-joints. Karamanos et al [22] proposed a set of parametric equations to determine the SCFs for multiplanar welded CHS XX-connections. In this study, the weld profile was modeled using 20-node solid elements while 8-node shell elements were used to model the chord and brace.…”

Development of Methods for the Assessment of Stresses in Welded Structure Elements. Part 2. The Latest Methods

“…Work [8] involved the FEM-based obtainment of an SCF-related database used to develop a simple and effective methodology for the forecasting of SCF values concerned with various types of loads and related to welded joints of XX-shaped tubular structures. In addition, the work also involved the obtainment of equations and diagrams recommended for engineering practice in relation to the forecasting of SCF values.…”

“…It should be noted that works [4][5][6][7][8] were concerned with the definition of the structural SCF, which in work [3] was referred to as the first type concentrator. An entirely different approach to K-shaped tubular structures was adopted in work [9], where the authors used displacements in the effective concentrator to determine local stresses.…”

“…The analysis of works [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17], involving the use of FEM, revealed that the above-named method did not enable the assessment of fractions of external force factors in the total stress in the concentration zone.…”

“…It should be noted that works presented in post-soviet scientific publications had the same direction as works [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][20][21][22][23]. For instance, work [31] was concerned with the fatigue service life of tubular T-joints.…”