Chapter 4 - Guided Discovery
and Review #1
1. Given the simply supported beam shown,
determine:
a) the reactions at the supports
b) the two couples that can be used to
replace the forces
2. Assuming that the above beam has a 10
inch square cross section and remains elastic, determine:
a) the position of the neutral axis (N.A.)
b) the moment of inertia about the N.A.
c) the section modulus about the N.A.
d) the maximum normal stresses in the
top and bottom fibers of the beam
3. Assuming that the above beam is made of
Western Hemlock and has a Poisson's ratio of 0.24, find its
a) radius of curvature
b) anticlastic radius of curvature