A standard 0.505-in.-diameter tensile bar was machined to a 2.00-in.-gage length from a copper-nickel alloy and the follow- ing data were collected: Load (Ibs) Gage Length (in.) 2.00000 1,000 2.00045 2,000 2.00091 3,000 2.00136 4,000 2.0020 6,000 2.020 8,000 2.052 10,000 2.112 11,000 2.280 (maximum load) 9,000 2.750 (fracture)
A standard 0.505-in.-diameter tensile bar was machined to a 2.00-in.-gage length from a copper-nickel alloy and the follow- ing data were collected: Load (Ibs) Gage Length (in.) 2.00000 1,000 2.00045 2,000 2.00091 3,000 2.00136 4,000 2.0020 6,000 2.020 8,000 2.052 10,000 2.112 11,000 2.280 (maximum load) 9,000 2.750 (fracture)
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Transcribed Image Text:A standard 0.505-in.-diameter tensile bar
was machined to a 2.00-in.-gage length
from a copper-nickel alloy and the follow-
ing data were collected:
Load (Ibs)
Gage Length (in.)
2.00000
1,000
2.00045
2,000
2.00091
3,000
2.00136
4,000
2.0020
6,000
2.020
8,000
2.052
10,000
2.112
11,000
2.280 (maximum load)
9,000
2.750 (fracture)
After fracture, the gage length was 2.75 in.
and the diameter was 0.365 in. Plot the
engineering stress strain curve and
calculate
(a) the 0.2% offset yield strength;
(b) the tensile strength;
(c) the modulus of elasticity;
(d) the % elongation;
(e) the % reduction in area;
(f) the engineering stress at fracture;
(g) the true stress at necking; and
(h) the modulus of resilience.
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