3 in. 3 in. 3 in.
6 in.
2 in.
15 kips 15 kips
A B
C
D
60 in.
40 in.
40 in.
PROBLEM 6.9
Two vertical forces are applied to a beam of the cross section
shown. Determine the maximum tensile and compressive stresses (a) at
a point half way between A and B and (b) midpoint between B and C.