Table 2 Mean and standard deviation of spurious strain measured during DIC system calibration.
From: Optical visualization of the full-field swelling of laminated rocks
Displacement distance (mm) | 1 | 2 | 3 | 4 | 5 | Â |
|---|---|---|---|---|---|---|
In-plane direction | Mean spurious strain (%) | 0.011 | 0.017 | − 0.013 | 0.008 | − 0.010 |
Standard deviation (%) | 0.059 | 0.068 | 0.076 | 0.081 | 0.083 | |
Out-of-plane direction | Mean spurious strain (%) | 0.018 | 0.022 | 0.017 | 0.016 | 0.019 |
Standard deviation (%) | 0.125 | 0.152 | 0.168 | 0.217 | 0.266 |
