A solid cylindrical specimen is compressed between two frictionless dies. The starting diameter and height are shown. The 2024-T4 aluminum workpiece material can be modeled as strain hardening with: σ = 690.16 MPa.
a. If the true strain after compression is -0.4, what is the final height (in mm)?
150 mm
b. Assuming volume constancy, what is the final diameter (in mm)?
100 mm diameter
c. Calculate the true stress for the final height. Express your result in MPa.
d. Calculate the required force to reach the final height. Express your result in N.