A cylindrical rod 100 mm long and having a diameter of 10.0 mm is to be deformed using a tensile load of 27,500 N. It must not experience either plastic deformation or a diameter reduction of more than 7.5 × 10-3 mm. Of the materials listed as follows, which are possible candidates? Justify your choice(s).

This problem asks that we assess the four alloys relative to the two criteria presented. The first criterion is that the material not experience plastic deformation when the tensile load of 27,500 N is applied; this means that the stress corresponding to this load not exceed the yield strength of the material. Upon computing the stress

Modulus of Elasticitj Yield Strength Material Alumim alloy Brass alloy Steel alloy Titanium allov GPa 70 101 207 107 MPa 200 300 400 650 Poisson 's Ratio 0.33 0.34 0.30 0.34