A high-strength steel bar used in a large crane has diameter d = 2.00 in. (see figure). The steel has modulus of elasticity E = 29 × 106 psi and Poisson's ratio v = 0.29. Because of clearance requirements, the diameter of the bar is limited to 2.001 in. when it is compressed by axial forces.
What is the largest compressive load Pmax that is permitted?

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