Solve the problem $13\mathrm{.}5$ presented in your textbook.

Human femur bone was subjected to a uniaxial tension test. As a result of a series of experiments, the stress$-$strain curve shown in Fig. $13\mathrm{.}42$ was obtained. Based on the graph in Fig. $13\mathrm{.}42,$ determine the following parameters:

a$)$ Elastic modulus, $E$

b$)$ Apparent yield strength, ${}_y($use the offset method$).$

c$)$ Ultimate strength, ${}_u$

d$)$ Strain, ${}_1,$ corresponding to yield stress.

e$)$ Strain, ${}_2,$ corresponding to ultimate stress.

f$)$ Strain, energy when stress is at the proportionality limit$.$

Fig. $13\mathrm{.}42$ Problem $13\mathrm{.}5$

$2.$ You will have one $(1)$ attempt with one $(1)$ hour to complete this activity.

$3.$ This activity has $10$ points value.

$4.$ Submit your answers in Blackboard.

$5.$ For due dates visit the Calendar located in "Tools" menu in Blackboard.