Per the Aluminum Design Manual (ADM) 2015, the allowable bending stress of round tubes shall be determined for the limit states of yielding, rupture, and local buckling:
- that given by section F.6.1 (compressive yielding), or
- that given by section F.6.1 (tensile yielding), or
- that given by section F.6.1 (tensile rupture), or
- that given by section F.6.2 (upper inelastic buckling), or
- that given by section F.6.2 (lower inelastic buckling), or
- that given by section F.6.2 (elastic buckling)
Basically, the allowable bending stress is either the allowable tensile stress of the tension side of member (#2), the allowable compressive stress of the compressive side of the member considered as a whole (#1), or the allowable compressive stress of the member as governed by its individual elements (flange & webs) due to local buckling (#4, #5, and #6).
The allowable compressive stress of a member works in a similar way, but based on sections E.3 and E.4 for limit states of member buckling and local buckling, respectively.
Examples from the Aluminum Association are found by Clicking Here
Bottom line is this is a complicated procedure, let us help! Contact Us
Last Update: February 19, 2022
Total 0 Votes:
0