Factor A and B shell thickness 1

[lcatg]

Hi,

to calculate shell thickness under external pressure, ASME formula has two factors A and B. What actually these factors represent? Do they indicate any property?

 

[SnTMan]

lingeshgdvg, I refer you to ASME Sec II, Part D, Mandatory Appendix 3 for a full discussion, but paraphrasing from the same, briefly, and imprecisely :

Factor A is a geometry based factor, relations between thickness, diameter and length as applicable. It is independent of material.

Factor B is a material based factor and represents stress-stain data. This dependent on Factor A (geometry) and temperature. Factor B is used in calculation of the allowable external pressure.

Regards,

Mike

The problem with sloppy work is that the supply FAR EXCEEDS the demand

 

[lcatg]

Thanks a lot SnTMan.

By refering the source,parts everything clearly you opened up a new chapter to learn for me. Its really helpful..