Question

2. A tensile test specimen with a diameter d = 11.28 mm and a gage length of l = 50 mm was tested and the provided data was measured. Plot the stress strain curve and use it to find the following: (a) the elastic modulus, (b) the proportional limit, (c) the ultimate stress, (d) the ultimate strain, (e), the yield stress (0.2% offset), the failure stress, and (f) the true failure stress if the final diameter of the specimen at the location of the fracture was 9.50 mm. Load (kN) Change in Length (mm) Load (kN) Change in Length (mm) 0 0 43.8 1.50 7.6 0.02 45.8 2.00 14.9 0.04 48.3 3.00 22.2 0.06 49.7 4.00 28.5 0.08 50.4 5.00 29.9 0.10 50.7 6.00 30.6 0.12 50.4 7.00 32.0 0.16 50.0 8.00 33.0 0.20 49.7 9.00 33.3 0.24 47.9 10.00 36.8 0.50 45.1 Fracture 41.0 1.00

          2. A tensile test specimen with a diameter d = 11.28 mm and a gage length of l = 50 mm was tested and the provided data was measured. Plot the stress strain curve and use it to find the following: (a) the elastic modulus, (b) the proportional limit, (c) the ultimate stress, (d) the ultimate strain, (e), the yield stress (0.2% offset), the failure stress, and (f) the true failure stress if the final diameter of the specimen at the location of the fracture was 9.50 mm.
Load
(kN)
Change in Length
(mm)
Load
(kN)
Change in Length
(mm)
0
0
43.8
1.50
7.6
0.02
45.8
2.00
14.9
0.04
48.3
3.00
22.2
0.06
49.7
4.00
28.5
0.08
50.4
5.00
29.9
0.10
50.7
6.00
30.6
0.12
50.4
7.00
32.0
0.16
50.0
8.00
33.0
0.20
49.7
9.00
33.3
0.24
47.9
10.00
36.8
0.50
45.1
Fracture
41.0
1.00

$2. A tensile test specimen with a diameter d = 11.28 mm and a gage length of l = 50 mm was tested and the provided data was measured. Plot the stress strain curve and use it to find the following: (a) the elastic modulus, (b) the proportional limit, (c) the ultimate stress, (d) the ultimate strain, (e), the yield stress (0.2% offset), the failure stress, and (f) the true failure stress if the final diameter of the specimen at the location of the fracture was 9.50 mm. Load (kN) Change in Length (mm) Load (kN) Change in Length (mm) 0 0 43.8 1.50 7.6 0.02 45.8 2.00 14.9 0.04 48.3 3.00 22.2 0.06 49.7 4.00 28.5 0.08 50.4 5.00 29.9 0.10 50.7 6.00 30.6 0.12 50.4 7.00 32.0 0.16 50.0 8.00 33.0 0.20 49.7 9.00 33.3 0.24 47.9 10.00 36.8 0.50 45.1 Fracture 41.0 1.00$

Added by Heather L.

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