Question 2 (20 points): A beam is carrying a
moment M as indicated. The cross section of the
beam is symmetric about the z axis. The dimensions
of the cross section and the location of the centroid
(point C) are shown. Knowing that I_(y)=280,000
mm^(4),I_(z)=150,000mm^(4), and M=400062 in
N.mm, where UV are the last two digits of your
student number.
(a) Calculate the components of the bending
moment on the y and z axes, M_(y) and M_(z).
(b) Identify which point at the cross section has the
largest tensile stress, and which point at the
cross section has the largest compressive stress.
(c) Calculate the maximum tensile stress and the
maximum compressive stress in the cross
section.
Question 2 (20 points): A beam is carrying a moment M as indicated. The cross section of the
V
12 mm
beam is symmetric about the z axis. The dimensions
of the cross section and the location of the centroid
(point C) are shown. Knowing that I, = 280,000
mm4, I, = 150,000 mm4, and M = 400062
in
N.mm, where UV are the last two digits of your
50 mm
Z
student number.
(a) Calculate the components of the bending moment on the y and z axes, M, and M. (b) Identify which point at the cross section has the
largest tensile stress, and which point at the
- 30 mm
cross section has the largest compressive stress
(c) Calculate the maximum tensile stress and the
maximum compressive stress in the cross
section.