%0 Journal Article %A Sharifi, Seyed Mohammad Hossein %A Edalat, Pedram %A Najafi, Babak %A Bolfakeh, Masoud %T Numerical Assessment of Tight-Fit Sleeve Clamp in the Repair Process of Cracked Submarine Pipelines %J International Journal of Maritime Technology %V 14 %N 0 %U http://ijmt.ir/article-1-692-en.html %R %D 2020 %K Crack arrest, Stress intensity factors, Inclined cracks, Tight-fit sleeve, Submarine pipelines, %X The present research addresses the crack arrest in the submarine pipeline under internal pressure, axial force, and bending moment. The main purpose of the research is to consider tight-fit sleeves as a solution to crack arrest. The stress intensity factor criteria are used to describe the crack behavior. It should be noted that the cracks examined here are inclined through-thickness cracks, which the ABAQUS commercial software used to simulate them. It's noteworthy that Mode I fracture is dealt with, and the other fracture modes are omitted. The results show that the tight-fit sleeves, preferentially arrest the inclined cracks; so that the amounts of the stress intensity factors decrease for all the cracks except for the circumferential cracks to the extent that they become closed. As a result, their growth stops in practice; however, it best reduces the stress intensity factors by up to 65.36% at the circumferential cracks, and their amounts remain non-negative. Tight-fit sleeves create a pressurized region around the inclined cracks. This causes that inclined cracks remain closed. %> http://ijmt.ir/article-1-692-en.pdf %P 13-20 %& 13 %! %9 Research Paper %L A-10-1201-1 %+ Department of Mechanical Engineering, Petroleum University of Technology %G eng %@ 2345-6000 %[ 2020