Stress calculation for pipes under negative pressure
Thread Content
How is the stress in pipes with negative pressure calculated? Is it a conversion to calculate the corresponding positive pressure? Who has the standard that outlines this corresponding relationship? Could you share it? Thank you
All calculations should be filled in based on absolute pressure!
This post was last edited by Ling Shuang on 2015-11-2 at 13:54. What was said above is incorrect; the HELP file for CAESAR states that the pressure to be entered is the difference between the internal and external pressures, that is, gauge pressure.
Pressure has little impact on the calculation results; the difference between absolute pressure and gauge pressure is only 100 KPa. That’s what the teacher said during class.
There is still an impact; stress can induce axial, circumferential, and radial stresses, resulting in very different outcomes