Open Access
Table 2
Sources of uncertainties associated with their values.
| Sources of uncertainties | Standard uncertainty, ui | Probability distribution | Sensitivity coefficient, ci | Uncertainty (N/mm2) |
|---|---|---|---|---|
| Calibration, uF1 | 590.4 [N] | Rectangular | 1.61 × 10−5 [1/mm2] | 9.49 × 10−3 |
| Load application rate, uF2 | 2778.9 [N] | Rectangular | 1.61 × 10−5 [1/mm2] | 4.46 × 10−2 |
| Preservation condition effect, uF3 | 2084.2 [N] | Rectangular | 1.61 × 10−5 [1/mm2] | 3.35 × 10−2 |
| Effect of planarity, uF4 | 2084.2 [N] | Rectangular | 1.61 × 10−5 [1/mm2] | 3.35 × 10−2 |
| Angle of surface plane, uF5 | 138.9 [N] | Rectangular | 1.61 × 10−5 [1/mm2] | 2.23 × 10−3 |
| Sample centering, uF6 | 694.7 [N] | Rectangular | 1.61 × 10−5 [1/mm2] | 1.11 × 10−2 |
| Reading of applied force, uF7 | 105.1 [N] | Normal | 1.61 × 10−5 [1/mm2] | 1.69 × 10−3 |
| Reading of sample area, uA | 73.4 [mm2] | Normal | 3.59 × 10−5 [N/mm4] | 2.64 × 10−3 |
| Combined uncertainty uc(y), k = 1 | 1.39 × 10−1 | |||
| Expanded uncertainty U, k = 2 | 2.78 × 10−1 | |||
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