Table 1 Goodness of fit (coefficient of determination, R2) values for all models.

From: Comprehensive constitutive modeling and analysis of multi-elastic polydimethylsiloxane (PDMS) for wearable device simulations

Hyperelastic model

Mechanical test

Tensile

Compressive

Shear

Neo-Hookean

0.998393

0.855245

0.992391

Mooney–Rivlin 2 parameters

0.998704

0.990729

0.992391

Mooney–Rivlin 5 parameters

0.999988

0.998509

0.999139

Yeoh 1st order

0.998393

0.855245

0.992391

Yeoh 2nd order

0.999141

0.979324

0.995122

Yeoh 3rd order

0.999870

0.997810

0.998402

Ogden 1st order

0.998945

0.994170

0.994428

Ogden 2nd order

0.704377

0.977361

0.824771

  1. A value closest to 1 shows best fit. See "Method“ section for R2 calculation description.
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