Three steel bars with a diameter of 25 mm and carbon contents of 0.2, 0.5, and 0.8%, respectively. The specimens were subjected to tension until rupture. The load versus deformation results were as shown in Table P3.19. If the gauge length is 50 mm, determine the following:
a. The tensile stresses and strains for each specimen at each load increment.
b. Plot stresses versus strains for all specimens on one graph.
c. The proportional limit for each specimen.
d. The 0.2% offset yield strength for each specimen.
e. The modulus of elasticity for each specimen.
f. The strain at rupture for each specimen.
g. Comment on the effect of increasing the carbon content on the following:
i. Yield strength
ii. Modulus of elasticity
iii. Ductility
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