Torsion bar
Torsion bar
(OP)
Hi I am currently trying to understand the effect of cross section on the torsional resistance of the bar/rod. I know that the moment about XX axis refers to the bending resistance . But I am confused,in case of torsion is it the moment along ZZ which has to be considered or the torsion constant ? I have no idea. I heard Izz can simply be sum of Ixx and Iyy for a tube of circular cross section . But what about open cross sections like C. I have a complicated cross section and I want to compare it with other cross sections . can you guide me ?






RE: Torsion bar
If you have a complicated shape, there are some programs out there, both free and paid, that can calculate torsional properties of the cross-section, which could help with any stress check you must do.
RE: Torsion bar
Can you provide a sketch of your section.
RE: Torsion bar
hi desertfox, thanks for your reply too, I will try and sketch a profile to post it here maybe tomorrow .
RE: Torsion bar
can you give me a name of the software that can calculate torsion properties for my section pls? and is it possible to calculate if the section has an insert of differnt properties? thanks
RE: Torsion bar
http://www.eng-tips.com/viewthread.cfm?qid=328480
It discusses programs for section property analysis.
And with a composite, shear flow at the interface would be an important consideration.
RE: Torsion bar
Regards.
RE: Torsion bar
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