A specimen having a gauge length of 2 in. and a diameter of
0.505 in. was placed in a tension testing machine and loaded
until fracture. The elongation (in 10^-3 in.) at various loadings (in
kips) was recorded as seen at left. From the data, plot the stress-strain curve for the material, and determine the following:
a. the stress at proportional limit of the material
b. the modulus of elasticity of the material
c. the yield strength of the material (based on the
offset method)
d. the ultimate stress of the material
e. the fracture stress of the material
f. the modulus of resilience of the material