The material for the tension specimen has the stress-strain diagram shown. Determine approximately the modulus of...

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The material for the tension specimen has the stress-strain diagram shown. Determine approximately the modulus of elasticity

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Answer 1

Answer #1

$Here\,\,E_2\,\,is\,\,slope \,\,between\,,second\,\,stress\,\,and\,\,third\,\,point. \\\\So,\\\\E_2=\frac{\sigma_3-\sigma_2}{\epsilon_3-\epsilon_2}\\\\E_2=\frac{45-36}{0.003-0.0012} \\\\ E_2=\frac{9}{1.8*10^{-3}}\\\\ So,\\\\ E_2=5000\,\,ksi$

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