Investigation of Static Strength of Tubular T Joints due Different Patterns of pitting Corrosion under out-plane bending loading

In this research, the effects of pitting corrosion different patterns on the Static strength of the tubular T joints under out-plane bending were investigated. Using the finite element method, simulation of the behavior of the joint was performed. The validity of the numerical results was investigated by the results of a test, then two parameters of the dispersion pattern and depth of the pitting were considered in 90 numerical models. The results showed that the corrosion dispersion in the intersection area of the joints, especially on the chord, reduced the static strength of the other patterns, as well as increasing the depth of the pitting in the range of distribution of stress concentration and reduction of joint strength.