Pressure vessel
Pressure vessel
(OP)
I'm designing a pressure vessel and both my resultant longitudinal stresses upwind and downwind are negative. I have checked my calculations and there is no error. My bending stress is very small which results in both values being negative. Is this Ok? And if it isn't ok, what can I do to obtain values of opposite signs?





RE: Pressure vessel
Regards,
Mike
RE: Pressure vessel
dead weight stress -5.95 N/mm2 compressive so negative
longitudinal stress 81 N/mm2
upwind condition= longitudinal stress+dead weight+ bending stress
= 81-5.95+3.35
=78.4 N/mm2
downwind condition= longitudinal stress+dead weight stress- bending stress
81-5.95-3.35
=71.7 N/mm2
They are both positive as my bending stress is small
RE: Pressure vessel
Regards,
Angela
RE: Pressure vessel
Per your second post, things look OK to me.
Regards,
Mike
RE: Pressure vessel
Luis