The true stress true curve is given by σ = 1400

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The true stress true curve is given by σ = 1400 ε^0.33, where the stress σ is in MPa. The true stress maximum load (in MPa) is

1. 971
2. 750
3. 698
4. 350

Correct Option: A

σ = 1400ε^0.33 MPa.
At UTS, n = 0.33
σ _f = 1400 (0.33)^0.33
σ 971 MPa