Atensile test is performed on a metal specimen, and it is found that a true plastic strain of 0.16 is produced when a true stress of 500 mpa (72,500 psi) is applied; for the same metal, the value of k in equation 6.19 is 825 mpa (120,000 psi). calculate the true strain that results from the application of a true stress of 600 mpa (87,000 psi).

A12 mm diameter shaft runs in a plain cylindrical bush 30 mm long that is located in an 18 mm diameter hole in a housing. the shaft-inner bush fit is h8 f and the outer bush-housing fit is h7-p6. make a fully cimensioned sketch of the bush with tolerances. find the maximum and minimum clearance or interference for both fits on the inner and outer diameters of the bush