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Axisymetric Finite Deflection of Circular Plates

Axisymetric Finite Deflection of Circular Plates

Axisymetric Finite Deflection of Circular Plates

(OP)
I have a solution for this problem in Chapter 10.11 of Roark, but the load case refers to constant pressure over all surface. Does anyone has a paper of Mr. Mah, G.B.J. (a proceeding of American Society of Civil Engineers - Mech. Eng. Div., vol 95, no. 5, October 1969)? According to Mr. Roark this paper describes several loadings and edge conditions.
My specific case is an atmospheric horizontal flat heat tank and I have to determine the stresses in the heads.

Thanks in advance.

RE: Axisymetric Finite Deflection of Circular Plates

Could you give a little more details? Is this a Tank according to API or a Pressure Vessel according to ASME.
Size and pressure would also help get you pointed in the right direction.

RE: Axisymetric Finite Deflection of Circular Plates

If you mean that your plate is subject to a linearly distributed load (non axisymmetric load), the Roark has such a condition for a simply supported circular plate; you can combine it with the uniform pressure condition to get an hydrostatic pressure load.

prex

http://www.xcalcs.com
Online tools for structural design

RE: Axisymetric Finite Deflection of Circular Plates

hatanak, prex,

The reason I mentioned API and ASME codes is that a lot of programs don't take into consideration is how the plate is attached to the shell. It is this connection that causes the problem. One thing to remember if you are designing to a code the head plates become very thick very fast with pressure. I've been involved in some very hairy situations involving flat plates.

RE: Axisymetric Finite Deflection of Circular Plates

(OP)
prex,
you are quite right.
The stresses I have to determine are due to static head of fluid contained inside the horizontal tank.
I did not find a load case for such situation.

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