Beams with Torsion
Beams with Torsion
(OP)
Can anyone suggest a reference for design of structural tubes for flexure and torsion?
When was the last time you drove down the highway without seeing a commercial truck hauling goods?
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RE: Beams with Torsion
RC
All that is necessary for the triumph of evil is that good men do nothing.
Edmund Burke
RE: Beams with Torsion
That's the real basis of my question.
RE: Beams with Torsion
Section 4.6.2 - goes through the combined stresses from torsion and other loads on a closed shape.
There are also a few design examples.
Example 5.2 does what you are looking for I believe.
RC
All that is necessary for the triumph of evil is that good men do nothing.
Edmund Burke
RE: Beams with Torsion
RE: Beams with Torsion
RE: Beams with Torsion
contains extensive information on torsion of tubular structures.
Its an old book, but quite good in my opinion.
RE: Beams with Torsion
RE: Beams with Torsion
What exactly is the purpose of your comment?
It is arrogant and not the least bit helpful. True as it may be, it seems the only purpose is to make yourself look informed at the expense of the OP.
And torsion, in general, is NOT an easy problem. In tubular sections, it is fairly straightforward, but for almost any other shape it is quite involved.
Structural engineers have the added burden of taking many other factors into account. Is the section torsionally restrained? Is it compact? Is there additional loading perpendicular to the cross section? In both directions?
You mechanical's may be able to design a circular shaft to transfer torque and forget about it. We don't have that luxury.
RE: Beams with Torsion
RE: Beams with Torsion
With torsion some strength of materials books dont have exactly what we need so we seek a bit more as the Op is doing.
Perfectly understandable.
RE: Beams with Torsion
This one is going to be fun. But it's going to require some study on my part.
And I'd certainly avoid torsion if I could.
RE: Beams with Torsion
RE: Beams with Torsion
May not be easy to get the reference Brezler Lin Scalzi "Design of Steel structures" but parts are really advanced strength of materials and theory is derived from first principles. I did use it on a number of occasions for torsion problems (fortunately for me not many)and it got me out of trouble.
I think it may be worth having a look at it if you can locate a copy.
RE: Beams with Torsion
RE: Beams with Torsion
I would appreciate it if anyone could point to some texts/papers/methods for evaluating the angle of twist at which cracking occurs.
RE: Beams with Torsion
Any classical design textbook will give you a formula to calcualate the shear.