Torsion of wide-flange beam

Torsion of wide-flange beam
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Posted by: rogerroll ^Ž
Huckleberry

04/07/2004, 08:44:27

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Hi! Can someone help me understand Roark's formula for torsional stress (Roark's 7th ed. table 10.1, #26) Specifically, what is algebraically least in the case of a wide-flange beam? The point on the top flat? or on 'r'?
Also, if it is on 'r', what is the angle around the "reentrant portion" Is it pi/2 of 'r'?
Hmmm.

Thanks!
Roger

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