For the following problem, unless noted otherwise refer to Appendices F and G for necessar...

For the following problem, unless noted otherwise refer to Appendices F and G for necessary mechanical properties of materials.

A load is applied to a rigid bar that is symmetrically supported by three steel rods, as shown. The cross-sectional area of each of the rods is 1.2 in2. Calculate the maximum load P that may be applied (a) using an elastic approach with an allowable stress of 22,000 psi and (b) using an ultimate strength approach (inelastic) with a factor of safety of 1.85. Assume a ductile material with a yield stress of 36,000 psi.

Problem