GATE Mechanical Engineering (ME) 2023 Shift 1 Solved Paper

Question : 57 of 65

Marks: +1, -0

Ignoring the small elastic region, the true stress (𝜎) – true strain (𝜀) variation of a material beyond yielding follows the equation 𝜎 = 400𝜀^0.3 MPa. The engineering ultimate tensile strength value of this material is ________ MPa.
(Rounded off to one decimal place)