Thanks for the all the help. After all of this I'm rather curious as to how this constant was derived, as I've realised that I obviously don't understand it all too well. Will probably have to do some digging in the old classic elastic theory, as I suspect the formulae given in the codes etc are...
Thanks, I appreciate the feedback, but perhaps I posed my question ambiguously. To rephrase: I am considering a standard steel I beam with voids in its web. Please see the attachment for an example.
I'm looking for a method to calculate this constant without the use of software if possible...
I am quite unfamiliar with cellular beams and I am looking for a way in which to calculate the warping torsion constant Cw.
I am aware that for symmetrical I and H sections the following formula can be applied:
Cw = (Iy.h^2)/4
Can this be adapted to accommodate the cross section of a cellular...
