aluminum tube strength

I'm looking for a good source for equations that are used to calculate
load bearing strength and yield strength for aluminum tube.
I found this formula on a site for aircraft mechanics:
strength (in psi) = yield * (wall thickness / radius)
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Some sort of buckling probably has to be taken into account, at least if it is thin-walled.
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--=20 Anders Lager=E5s
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Anders Lagerås
This paper maybe useful for you, It summarizes the empirical formulas on quasi-static axial compression of thin-walled circular aluminium tubes:
Quasi-static axial compression of thin-walled circular aluminium tubes,S.R. Guillowa, G. Lua; *, R.H. Grzebietab,International Journal of Mechanical Sciences 43 (2001) 2103-2123
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