The below true stresstrue plastic strain relation describes

The below true stress-true plastic strain relation describes the behavior of a quenched and tempered SAE 4340 steel (E = 207 GPa) sigma_T = 2.76 epsilon_T^0.1 GPa Where sigma_T and epsilon_T are true stress and true strain respectively. The true plastic strain at fracture for this metal was measured as 0.45. Determine the following: True fracture strength, sigma_f Total true strain at fracture Strain hardening exponent, n Strength at the 0.2% \'offset\' yield strength (as seen in Fig 2.26 in textbook) Reduction in area %RA at fracture True fracture ductility, epsilon_f True strain at the ultimate strength Engineering ultimate strength, S_US

Solution

for option d it was written as shown in figure but no figure was attached .try to upload it completely