Aluminum (E = 70 Gpa) workpiece CE is clamped in place as shown here. This piece is 2-cm-tall and has a 0.5 cm x 1 cm rectangular cross-section. A 4-cm-long- steel (E = 200 Gpa), 1-cm-diameter bolt is adjusted to generate the workpiece clamping force. Assuming that member ABC is rigid, x = 4 cm, and the bolt is initially adjusted for no load in any member, what is the maximum stress in the bolt if the stress in the workpiece is not to exceed 200 MPa?

101 MPs

142 MPs

162 MPs

183 MPs