Q6: The following stress-strain curve is for a copper alloy (Figure 1 and Figure 2). At fracture, the total length was 53 mm, and the diameter was 10 mm. The initial length and diameter were 50.8 mm and 12.8 mm respectively. Determine: a) the 0.2% offset yield strength b) the ultimate tensile strength UTS c) the modulus of elasticity E d) engineering stress and strain at fracture e) true stress and true strain at UTS f) true stress and true strain at fracture V

Elements Of Electromagnetics
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Q6: The following stress-strain curve is for a copper alloy (Figure 1 and Figure 2). At
fracture, the total length was 53 mm, and the diameter was 10 mm. The initial length and
diameter were 50.8 mm and 12.8 mm respectively. Determine:
a) the 0.2% offset yield strength
b) the ultimate tensile strength UTS
c) the modulus of elasticity E
d) engineering stress and strain at fracture
e) true stress and true strain at UTS
f) true stress and true strain at fracture
(N)
Load (N)
60000-
50000
40000-
30000-
20000
10000
0-
40000-
30000
20000
10000-
04
10
15
20
Change in length (mm)
Figure 1. Load-Al curve for a copper alloy
0
5
0.2
0.0
Change in length (mm)
Fracture
region
Figure 2. The magnified load-Al curve for the same above copper alloy to show the elasticity
Transcribed Image Text:Q6: The following stress-strain curve is for a copper alloy (Figure 1 and Figure 2). At fracture, the total length was 53 mm, and the diameter was 10 mm. The initial length and diameter were 50.8 mm and 12.8 mm respectively. Determine: a) the 0.2% offset yield strength b) the ultimate tensile strength UTS c) the modulus of elasticity E d) engineering stress and strain at fracture e) true stress and true strain at UTS f) true stress and true strain at fracture (N) Load (N) 60000- 50000 40000- 30000- 20000 10000 0- 40000- 30000 20000 10000- 04 10 15 20 Change in length (mm) Figure 1. Load-Al curve for a copper alloy 0 5 0.2 0.0 Change in length (mm) Fracture region Figure 2. The magnified load-Al curve for the same above copper alloy to show the elasticity
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