Civil Engineering Materials #$3\mathrm{.}37$

An ASTM A$615$ grade $60$ number $10$ rebar with a gauge length of $8in.$ was subjected to tension to fracture according to ASTM E$-8$ method. The load and deformation data were as shown in Table P$3\mathrm{.}37.$

Using a spreadsheet program, obtain the following:

a$)$ A plot of the stress$-$strain relationship. Label the axes and show units.

b$)$ A plot of the linear portion of the stress$-$strain relationship. Determine modulus of elasticity using the best$-$fit approach.

c$)$ Proportional limit$.$