Finite element analysis of reinforcement for large square openings in elliptical heads
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As shown in the figure, it is now necessary to verify the strength of the square opening structure on the elliptical head, in order to determine whether reinforcement is required For regular circular openings, it can be calculated directly in SW6, but I’m not sure how to proceed in this case. First, I took a look at SW6, and it seems that there is no reinforcement calculation for square openings in it. Secondly, is it appropriate to use finite element calculations? If this can be done, will the result evaluation method be consistent with that of conventional circular nozzles? I appreciate your guidance; thank you!
I don’t understand either; let’s wait for an expert to come and learn together*.
1. For rectangular openings, you first need to determine whether the strength of your rectangular tube meets the design requirements. 2. You cannot use the openings specified in GB150; the area-equivalence method applies to circular openings (including ellipses and ovals), while this analysis method can only be used for cylindrical openings. 3. Check how the container category is classified; if it falls within the GB150 range, then carry out stress analysis calculations as required ； If it is not available, the diameter of the circumscribed circle of the rectangle can be used as an approximation for the diameter of the circular opening in the simulation calculations.
The finite element method is used for modeling, and analysis can be carried out using JB4732.
Thank you. I have a slight question regarding point 1: How is the strength of a rectangle calculated? Article 3: If holes are made according to the diameter of the outer circle, these will be large holes; it is not certain whether this approach is too conservative.
Okay, I’ll give it a try. Thank you so much!