Problem:
Two previously unreformed cylindrical specimens of an alloy are to be strain hardened by reducing their cross-sectional areas (while maintaining their circular cross sections). For one specimen, the initial and deformed radii are 16 mm and 11 mm respectively. The second specimen, with an initial radius of 12 mm must have the same strain hardening as the first specimen.
Question: Compute the second specimen's radius after deformation
Note: Please explain comprehensively and give step by step solution.