Question by Seven7: Structural mechanics; stress distribution on a cross section; locating shear centre?
The figure shows the cross-section of a lipped channel;
http://img149.imageshack.us/img149/6324/88754244yh7.th.png
How do i find the shear centre?
Yeah I’ve done all that… but i get to the q distribution and I’m not sure what the bounds of integration should be for the smaller parts of the web?
Best answer:
Answer by Tim C
The shear center is an imaginary point on a section, where a shear force can be applied without inducing any torsion. In your case I’d imagine it’s some where on the left (outside) of the C.
1.) find Ix,Iy,Ixy
2.) find shear flow on each of the faces
3.) do moment balance at the shear center (represented by coordinate variables relative to any point).
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