section modulus of a tapered section

[Binshel07]

Does anyone here knows how to calculate the elastic/plastic section moduli of a tapered section?

 

[dcarr82775]

Same as a non tapered member, you just have to do it a few times at various depths to get the trend (assuming straightline taper)

 

[rb1957]

ditto, perhaps explain the direction of taper ... like in-plane (so the section's not rectangular) or out-of-plane (like a swaged tube) ?

 

[JStephen]

If you mean the cross-section is not rectangular, it just becomes an integration problem from the definition.

You can get some section properties via AutoCAD- draw the shape, change it into a "Region" (if I remember right), move it so the centroid is at 0,0, then check properties of the region. I'd prefer the direct route.