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Example of fitting the model to force‐deformation data up to 20 % cell deformation, and the choice of best fit
| Initial stretch ratio, λs | Young’s modulus, E (GPa) | Root mean square errors |
| 1.005 | 3.26 | 0.0075 |
| 1.01 | 2.76 | 0.0046 |
| 1.015 | 2.41 | 0.0038 |
| 1.02 | 2.15 | 0.0039 |
The minimum root mean square error was 0.0038. The chosen initial stretch ratio, λs, was therefore 1.015, with a corresponding Young’s modulus of 2.41 GPa.
