Experimental compressive stress-strain data for an alloy steel is given in Table P12.29.
a. Plot the stress-strain diagram for the alloy.
b. Construct the tangent-modulus curve for the alloy.
c. A column made of the alloy steel has a length L = 1.5 m and a rectangular cross section of 100 mm by 125 mm, with fixed ends. Determine the tangent-modulus buckling load for the column.
Table P12.29
Strain | 0.001 | 0.0015 | 0.00175 | 0.002 | 0.003 | 0.0035 | 0.004 | 0.005 | 0.006 | 0.008 | 0.010 |
Stress [M Pa] | 200 | 300 | 350 | 396 | 431 | 448 | 460 | 477 | 494 | 529 | 552 |
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