A particular metal has a flow curve with parameters: strength coefficient = 35,000 psi and strain-hardening exponent = 0.26. A tensile specimen of the metal with gage length = 2.0 in is stretched to a length = 3.3 in. Determine the flow stress at this new length and the average flow stress that the metal has been subjected to during deformation.
Added by Erica M.
Step 1
First, we need to find the true strain at the new length. The true strain formula is given by: $$\epsilon = ln(\frac{L}{L_0})$$ where $\epsilon$ is the true strain, $L$ is the new length, and $L_0$ is the initial length. Show more…
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Adi S.
A particular metal has a flow curve with strength coefficient = 35,000 lb/in2 and strainhardening exponent = 0.26. A tensile specimen of the metal with gage length = 2.0 in is stretched to a length =3.3 in. Determine the flow stress at this new length and the average flow stress that the metal has been subjected to during deformation.
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