Question

Draw the stress-strain curve of a Gr. 60 steel. Identify on the curve the elastic modulus Es, yield stress fy, and yield strain ey (report values with appropriate units). Identify the elastic-linear range, and the plastic range on the stress-strain curve. What is the stress associated with the following levels of strain: es=0.0005, 0.001, 0.002, 0.004, 0.1?

Answer 1

Below is attached the stress-strain curve for grade 60 steel. From the curve the straight line part is linear elastic range while remaining is plastic range.

From that curve using relation sigma = E*strain, stress can be found.

for strain es, sigma = .0005*200 = 0.1 GPa,

similarly other can be calculated.