Question

The following data were recorded during the tensile test of a 14-mm diameter mild steel rod. The gage length was 50 mm. at fracture, the elongation between the gage marks was 4.0 mm and the minimum diameter was 11.3 mm a) Plot the conventional stress-strain curve for the mild steel b) determine the proportional limit c) Modulus of elasticity d) Yield stress at 0.2% e) Ultimate stress f) Breaking strength g) Percent elongation in 50 mm and reduction in area Load (N) Elongation (mm) 0 0 6310 0.01 12600 0.02 18800 0.03 25100 0.04 31300 0.05 37900 0.06 40100 0.163 41600 0.433 46200 1.25 52400 2.5 58500 4.5 68000 7.5 59000 12.5 67800 15.5 65000 20 61500 Fracture

          The following data were recorded during the tensile test of a 14-mm diameter mild steel rod. The 
gage length was 50 mm. at fracture, the elongation between the gage marks was 4.0 mm and the 
minimum diameter was 11.3 mm 
a) Plot the conventional stress-strain curve for the mild steel 
b) determine the proportional limit 
c) Modulus of elasticity 
d) Yield stress at 0.2% 
e) Ultimate stress 
f) Breaking strength 
g) Percent elongation in 50 mm and reduction in area 
Load (N)  Elongation (mm) 
0  0 
6310  0.01 
12600  0.02 
18800  0.03 
25100  0.04 
31300  0.05 
37900  0.06 
40100  0.163 
41600  0.433 
46200  1.25 
52400  2.5 
58500  4.5 
68000  7.5 
59000  12.5 
67800  15.5 
65000  20 
61500  Fracture

Added by Mercy N.

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