Experimental compressive stress-strain data for 2024 T4 aluminum alloy is given in Table P12.26.
a. Plot the stress-strain diagram for the alloy.
b. Construct the tangent modulus curve for the alloy.
c. A 2024 T4 aluminum alloy column used in a machine mechanism has a rectangular cross section of 12 mm by 12.5 mm and a length of 250 mm. Its ends ate fixed. Determine the tangent-modulus buckling load of the column.
Table P12.26
Strain | 0.001 | 0.002 | 0.003 | 0.004 | 0.005 | 0.006 | 0.008 | 0.010 |
Stress [M Pa] | 69 | 145 | 207 | 262 | 283 | 307 | 338 | 354 |
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