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The following data sets are from tensile tests on cylindrical steel (sets 1,2 and 3) and aluminum (sets 4, 5, and 6) samples. The elongation values for all six samples were obtained at the same values of axial force. In the next week or two you will perform your own tension tests, but for now we will simply use this data to practice our spreadsheet skills.
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Steel |
Aluminum |
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| Data
Set 1 |
Data
Set 2 |
Data
Set 3 |
Data
Set 4 |
Data
Set 5 |
Data
Set 6 |
|
| Force (lb) | Elongation (10-4 inches) | |||||
| 2100 | 18.0 | 16.3 | 17.4 | 55.0 | 58.0 | 63.0 |
| 3925 | 32.8 | 31.8 | 33.8 | 104.5 | 103.2 | 109.5 |
| 6225 | 52.2 | 50.3 | 54.3 | 164.2 | 158.2 | 164.3 |
| 7800 | 64.0 | 63.8 | 67.6 | 200.0 | 192.5 | 203.4 |
| 9850 | 80.7 | 81.3 | 85.4 | 254.0 | 242.0 | 253.0 |
Specimen Geometry
diameter = 0.625 inchesgage length = 8.00 inches
Formulas
stress = force / cross-sectional areastrain = elongation / gage length