Internal and external pressure calculation
Thread Content
Does anyone know what the more accurate formulas for calculating internal and external pressures are?
Thank you, please check GB150-1998!
You can refer to pages 26 and 27 of the **standard GB150-1998 of the People’s Republic of China**
According to GB150-1998; if it is not a steel container, follow the corresponding JB standards
Calculation of internal pressure in the cylinder: Pc=2δtφ/（δ+Di). Calculation of external pressure on the cylinder: When D0/δe >= 20, use L/D0; determine value A from Figure 6-2 of GB150 based on the value of D0/δe, and then determine value B from Figures 6-3 to 6-10. If value A intersects the material curve at the design temperature, then Pc = B/(D0/δe)
Thank you for the reply from the Shanghai friend; I finally understand it. Thank you so much! ! !
It can’t be said to be entirely accurate; GB150 can meet the requirements of engineering projects.
The textbooks designed for each container include derivations of the calculation formulas; different formulas have varying degrees of precision and uses. For engineering design, it is sufficient to use the formulas specified in the relevant standards. If it is for academic research, more work may be required
Detailed calculations are provided in GB150