en Offshore Structure مقاله پژوهشي Research Paper <div style="text-align: justify;">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&#39;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 &nbsp;that inclined cracks remain closed.</div> Crack arrest,Stress intensity factors,Inclined cracks,Tight-fit sleeve,Submarine pipelines 13 20 http://ijmt.ir/browse.php?a_code=A-10-1201-1&slc_lang=en&sid=1 Seyed Mohammad Hossein Sharifi sharifi@put.ac.ir 10031947532846003563 10031947532846003563 Yes Department of Mechanical Engineering, Petroleum University of Technology Pedram Edalat edalat@put.ac.ir 10031947532846003564 10031947532846003564 No Department of Mechanical Engineering, Petroleum University of Technology Babak Najafi babak.najafi.s@gmail.com 10031947532846003565 10031947532846003565 No Iranian Offshore Oil Company (IOOC) Masoud Bolfakeh masoudbolfakeh@gmail.com 10031947532846003566 10031947532846003566 No Petroleum University of Technology