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Vol.22, No.3, 2022, pp. 263–266 |
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STIFFENER AS A SPECIAL DESIGN SOLUTION FOR PRESSURE VESSEL REPAIR Trivun Vučetić1, Blagoj Petrovski2, Zlatan Marković1, Lazar Jeremić2, Nenad Milošević3, Aleksandar Sedmak*3, Nikola Milovanović2 1) Reversible Hydropower Plant ‘Bajina Bašta’, SERBIA 2) University of Belgrade, Innovation Centre of the Faculty of Mechanical Engineering, Belgrade, SERBIA 3) University of Belgrade, Faculty of Mechanical Engineering, SERBIA email: asedmak@mas.bg.ac.rs
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Abstract The reparation of vessel 970 is shown, since the risk is very high (close to the worst case of both probability and consequence, being the highest). Since the defect location was not suitable for digging out and repair welding, it was decided to make a circumferential stiffener, to reduce the stress acting on the welded joint, so that both the stress intensity factor and net stress are reduced significantly. Keywords: pressure vessel, stiffener, welded joints, repair, defect |
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full article (532 kB)
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