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The slopes of the strain-load curves obtained by strain gauge measurement (mean ± SD).
| −20 N (με/N) | −30 N (με/N) | −40 N (με/N) | |
|---|---|---|---|
| Maximum principal strain | 26.64 ± 4.86 | 25.49 ± 4.73 | 23.77 ± 5.24 |
| Minimum principal strain | −12.41 ± 5.12 | −12.39 ± 4.83 | −11.36 ± 4.61 |
| Midshaft strain | 29.94 ± 9.86 | 28.31 ± 9.73 | 27.26 ± 9.39 |
