A tension test was performed on an aluminum 2014- T6 alloy specimen. The resulting stress-strain diagram is shown in the figure. Estimate (a) the proportional limit, (b) the modulus of elasticity, and (c) the yield strength based on a 0.2% strain offset method. a (MPa) 420 350 280 210 140 70 (mm/mm) 0.06 0.02 0.002 0.08 0.008 004 0.10 0.004 0.006 0.010

Question
A tension test was performed on an aluminum 2014-
T6 alloy specimen. The resulting stress-strain diagram is
shown in the figure. Estimate (a) the proportional limit, (b)
the modulus of elasticity, and (c) the yield strength based on
a 0.2% strain offset method.
a (MPa)
420
350
280
210
140
70
(mm/mm)
0.06
0.02
0.002
0.08
0.008
004
0.10
0.004
0.006
0.010
Expand
Transcribed Image Text

A tension test was performed on an aluminum 2014- T6 alloy specimen. The resulting stress-strain diagram is shown in the figure. Estimate (a) the proportional limit, (b) the modulus of elasticity, and (c) the yield strength based on a 0.2% strain offset method. a (MPa) 420 350 280 210 140 70 (mm/mm) 0.06 0.02 0.002 0.08 0.008 004 0.10 0.004 0.006 0.010

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