7bex. Combined Loading Examples • Ex. 7b.1 
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Example 7b.1
Given: Consider the road sign of Example 2b.5. The forces, moments, and torque acting at a crosssection near the base of the mast are shown and right (Cut AA). Req'd: Determine the stress states at the surface of the mast, at
Points A, B, C and D. Point :

Forces, Moments and Torque acting at Cut AA. Road Sign 
Sol'n: Each load causes the mast to act as a different type of member, e.g.:
I_{x} is the Moment of Inertia about the xaxis. I_{y} is the Moment of Inertia about the yaxis. 
 
What are the stresses at the other points? 
Stress State at Pt. A 
Notes on Normal Stresses:
Notes on Shear Stresses:
 



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