Internal pressure calculation for conical heads
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This post was last edited by wcxlove on 2018-6-29 at 11:19. I have a question for everyone: in the calculation of the thickness of conical shells according to GB150, in Figures 5-12 and 5-14, are the values of φ in Pc/φ=δ/RL and Pc/φ=δ/RS the same? Do they both refer to the allowable stress at the design temperature of the conical shell and the weld joint coefficient? And why are Pc/φ equal to δ/RL? Please give me some advice, thank you
Pc/φ＝δ/RL, where RL is the mean diameter; multiplying both sides by RL gives us the formula for circumferential stress in the theory of thin-shell mechanics without moments
That’s right; it refers to the allowable stress at the design temperature of the cone shell and the weld joint factor.
This post was last edited by zjq1962 on 2018-6-30 at 13:15. The original poster can take a look at the engineer training tutorials; the attached image contains the answer you need, while another image is a screenshot from the explanation of the GB150 standard
Thank you very much for your thoughtful reply; I have learned a great deal from it. Thank you!