Strain Rate Sensitivity Example - Wire Tie Tensile Test
Posted by Nicholas Schaulsohn on Thu, Nov 18, 2010
Wire ties were pulled until fracture. Table and force-extension curves show how test speed affects peak load and maximum elongation. As the speed was doubled from 2 to 4 inches per minute, the maximum elongation was reduced by almost half. As the speed was increased from 2 to 16 inches per minute, the maximum force increased by 7.5%.
| Curve# |
Speed
(in/min)
|
Peak Load
(lb) |
Elongation
(in) |
| 1 |
2 |
29.5 |
3.90 |
| 2 |
4 |
29.6 |
2.01 |
| 3 |
8 |
30.4 |
1.75 |
| 4 |
16 |
31.7 |
1.72 |
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