Max displacements on a square vessel
Max displacements on a square vessel
(OP)
Well, i'm new in this forum & and i'd like to ask some advice about the design of a square vessel.
This recipient normally doesn't work under pressure but i'll be submitted to 1psi test pressure. I'm running some simulations with a FEA program & i'd like to know which could be the allowable max displacement in the flat roof, 1/100 or 1/200?
Thanks in advance
This recipient normally doesn't work under pressure but i'll be submitted to 1psi test pressure. I'm running some simulations with a FEA program & i'd like to know which could be the allowable max displacement in the flat roof, 1/100 or 1/200?
Thanks in advance





RE: Max displacements on a square vessel
When using standard flat-plate formulas, one of the limitations is that deflection should be small compared to the plate thickness, or else the formulas are invalidated due to the plate acting in tension rather than just in bending. You would need to confirm if this was an issue in your analysis as well.
RE: Max displacements on a square vessel
In the ASCE 7-05 Commentary, it mentions L/360 as the historical allowable deflection for roofs subject to full live load. This is the criteria I typically design to.
Also, the Pressure Vessel Handbook 12th Edition by Megyesy has some great information on rectangular vessels.
RE: Max displacements on a square vessel
Just in order to complete the info if someone needs, yesterday i was taking a look to the Megyesy, the suggested maximal allowable displacement for rectangular vessel is L/500 (length over 500), with L the maximal plate length.
RE: Max displacements on a square vessel