Facile Analytical Extraction of the Hyperelastic Constants for the Two-Parameter Mooney–Rivlin Model from Experiments on Soft Polymers

Having accurate data to represent hyperelastic materials that underpin soft robotics would facilitate their analysis, design, and validation. We seek to provide the reader with a useful tool to overcome a mundane but crucially important problem in determining the hyperelastic material properties. We show how to employ first dimensionless and then dimensional comparisons between experimental data and the classic theoretical model representing this system to produce C₁ and C₂ for the Mooney–Rivlin model, closely representing a variety of soft polymers.