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How to Calculate Stresses in Rectilinear Pressurized Channel

How to Calculate Stresses in Rectilinear Pressurized Channel

How to Calculate Stresses in Rectilinear Pressurized Channel

(OP)
Materials, dimensions and design conditions are shown on the attached drawing. I have taken a two-dimensional slice of the pressurized channel to simplify the analysis. It is a Section VIII-D1 pressure vessel.
Short of having professional software, how do I go about obtaining conservative values of the stresses? Seems to me I will need to consider vertical and horizontal loads on the four sides, as well as bending loads at the welds. Can I treat the latter portion as a beam under uniform loading?

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"If you don't have time to do the job right the first time, when are you going to find time to repair it?"

RE: How to Calculate Stresses in Rectilinear Pressurized Channel

You need to go to App.13, but if, as appears from your questions, you don't know where to start from, you'll need to ask for professional advice.

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RE: How to Calculate Stresses in Rectilinear Pressurized Channel

You can treat the bar as a beam under constant bending AND axial load.

RE: How to Calculate Stresses in Rectilinear Pressurized Channel

Also, you better

RE: How to Calculate Stresses in Rectilinear Pressurized Channel

check out figure UW-13.2 of Sec. VIII Div. 1. Looks like your corner joints are of the nonpermissible type.

RE: How to Calculate Stresses in Rectilinear Pressurized Channel

(OP)
Somebody permitted it, because it is a registered PV.
My task is only to do a FFS assessment.

"If you don't have time to do the job right the first time, when are you going to find time to repair it?"

RE: How to Calculate Stresses in Rectilinear Pressurized Channel

Just because it is stamped, does not mean it was designed correctly in the first place. I'd be sure to mention that this corner joint is a non-code detail. Should keep you out of trouble if something goes wrong.

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