Engineering, 03.03.2020 05:54 harding6698
In a tensile test on a steel specimen, true strain = 0.12 at a stress of 250 MPa. When true stress = 350 MPa, true strain = 0.26. Determine the strength coefficient and the strain-hardening exponent in the flow curve equation.
Answers: 3
and the strain-hardening exponent is 
and the 
.
plug this value in 
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In a tensile test on a steel specimen, true strain = 0.12 at a stress of 250 MPa. When true stress =...
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