Question

2. A specimen of steel 20 mm diameter with a gauge length of 200 mm is tested to destruction. It has an
extension of 0.25 mm under a load of 80 KN and the load at elastic limit is 102 KN. The maximum load
is 130 KN. The total extension at fracture is 56 mm and diameter at neck is 15 mm. Find:
a. The stress at elastic limit.
b. Percentage elongation.
c. Percentage reduction in area.
d. Ultimate tensile stress.

Answer 1

Answer:

the stress at elastic limit