Ipp=w_thick^3*h/3 (w_thick is the thickness of the web, h its height) and Wt_ = Ipp / w_thick.
Ther is a bug in Karamba 1.2.2 in the calculation of Ay and Az for I-cross sections:
Instead ofAy = uf_A + lf_A + (w_thick + fillet_r) * w_thickAz = A - uf_A - lf_A + (w_thick + 2 * fillet_r) * w_thick
it should be Ay = uf_A + lf_A; Az = A - uf_A - lf_A + (w_thick + 2 * fillet_r) * (uf_thick + lf_thick) * 0.5;
(A: total area, uf_A: area of upper flange, lf_A: area of lower flange, w_thick: web thickness, fillet_r: fillet radius, uf_thick: thickness of upper flange, lf_thick: thickness of lower flange).
Best,
Clemens
…
ists in different places. i couldn't split the resulting 2 lists to get another list, leaving me 3 lists. to resolve i just added another curve, giving me 2 curves to split the list in to 3 separate lists. simple maths really :) it's been a long week and simple maths right now is too hard to comprehend...:)
thanks for the response though.
w.…