Solution to Problem 110 Normal Stress

Problem 110
A 12-inches square steel bearing plate lies between an 8-inches diameter wooden post and a concrete footing as shown in Fig. P-110. Determine the maximum value of the load P if the stress in wood is limited to 1800 psi and that in concrete to 650 psi.



Solution 110



Question on both the FBD of wood and steel. How come it is presented in such a way that there is a load P on top of the object and each object has a corresponding P going up. I thought we are computing for the P on top of the objects? Kindly explain and thank you.

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