Day: March 6, 2019

Atmospheric tank calculation

The water tank shown below was analyzed with ANSYS Enterprise Mechanical. Load factors and acceptance criterions was taken from Eurocode and NORSOK.  The hydro testing case uses an overpressure of 0.01bar (1m water) in addition to the hydrostatic water pressure and weight. The hydro testing analysis did also include 50% of 100 year return period …

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Pressure vessel calculation – ASME VIII Division 1

The pressure vessel shown was analyzed in accordance with ASME VIII Division 1 (2015-edition). Local nozzle calculations was performed with WRC537 (also known as WRC107). All calculations and analyses are done by using the software PVElite from Intergraph. The software uses the Design-By-Rules approach.  The maximum allowable working pressure (MAWP) of the shell and heads …

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Investigation of Slugging

Vibrations was observed on an installation and an analysis was performed to determine the likelihood of fatigue failure. Team Stressman was sent measurements and video. The motion was due to slugging in the pipe. Based on this input we investigated dynamical stresses. These stresses were checked against DNVGL-RP-0005 fatigue curves, design life factors and stress …

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Subsea Manifold

Team Stressman has over the years been chosen to perform flexibility calculations of fast-track subsea manifolds for TechnipFMC.  Our responsibility was to verify the structural integrity of the piping and piping components of the subsea manifolds. Subsea piping made of super duplex is exposed to hydrogen induced stress cracking (HISC). This complicates the pipe stress …

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