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Double layered steel in tension???

Double layered steel in tension???

Double layered steel in tension???

(OP)
I originally posted a question (Link) in the storage tank section, but wanted to get a braoder perspective from some other mechanical diciplines to satisfy my curiosity.

Specifically, I was looking for similar cases or configurations (parallel layers in tension) that one might have encountered working with various structural or fixed equipment. An finite element analysis could always be performed as I have done in the past, but if what I am proposing is adequate, it will alleviate the need of having to perform a FEA and in turn will save time. For this case, I am dealing with a low pressure (atmospheric to 5 psig) tanks with a shallow bottom cone head (slope =< 2/12). In most of the cases I have encountered so far, the liquid head is the biggest controlling factor.

This may be a lost cause, but if it is, I want to know why. If nothing else, I am hoping to learn something from dipping my head in the river of free flowing ideas and ingenuity...assuming I don't drown...or something to that effect.

Thanks in advance.

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