A specimen of aluminum having a rectangular cross section $10mm12\mathrm{.}7mm(0\mathrm{.}4in0\mathrm{.}5in)$ is

pulled in tension with $35,500N(8000l{b}_r)$ force, producing only elastic deformation. Calculate

the resulting strain.

The figure below shows the tensile stress$-$strain behavior for a steel alloy.

a$.$ What is the modulus of elasticity

b$.$ What is the proportional limit

c$.$ What is the yield strength at an offset of $0\mathrm{.}2\%(0\mathrm{.}002)$

d$.$ What is the ultimate strength