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Recent content by FreddieH

  1. FreddieH

    Local Stress in Radial Nozzles on Spherical Shells due to Internal Pressure

    @ Tom Barsh - thank you for your reply, I agree it is very similar and an approach of solely looking at stress around an opening and applying a stress concentration factor with no reinforcement would be conservative. I've seen the ASME Boiler and Pressure Vessel Code, Section VIII, Division 2...
  2. FreddieH

    Local Stress in Radial Nozzles on Spherical Shells due to Internal Pressure

    Yes, 537 is for external nozzle loadings. The problem is the attachment parameters that the data set accomodates is very small and the 50 mm NB nozzle does not lay inside the range. I am designing the nozzle for known internal pressure & shock pressure & external nozzle loading due to attached...
  3. FreddieH

    How do i calculate i leak flow rate?

    This may help http://www.prosensys.com/pdfs/leak-rate_calculation.pdf
  4. FreddieH

    Local Stress in Radial Nozzles on Spherical Shells due to Internal Pressure

    Noone up for the challenge? I'm surprised. Someone must have looked at the problem of local stresses in radial nozzles on spherical shells.
  5. FreddieH

    Local Stress in Radial Nozzles on Spherical Shells due to Internal Pressure

    Hi, After searching around for awhile with no luck I have decided to write a post. I am sizing and assessing a cylindrical nozzle positioned in the centre of a torispherical head. I have completed evaluations of intersecting cylinders, however I cannot find a WRC Bulletin or any other...

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