Determine the elastic section modulus and the plastic section modulus for a W40x199 modeled as 3 rectangles forming the flanges and the web. Compare the calculated values to those given in the Manual.
For this W section:
d=38.7"
t_w=0.650"
b_f=15.8 "
t_f=1.07"
S_x=770 in^3
Z_x=869 in^3
