HyperData

function to read  experimental data for some hyperelastic materials

Main Reference:
Afshin Anssari-Benam
A generalised W(I1, I2) strain energy function of binomial
form with unified applicability across various isotropic
incompressible soft solids

Supported data names:
Treloar_1944
L. Treloar
Stress-strain data for vulcanized rubber under various types of deformation
Rubber Chem Technol, 17 (4) (1944), pp. 813-825

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Yohsuke
Yohsuke, B., Urayama, K., Takigawa, T., Ito, K.: Biaxial strain testing of extremely soft polymer gels. Soft Matter 7,
2632–2638 (2011). https://doi.org/10.1039/C0SM00955E

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Meunier
Meunier, L., Chagnon, G., Favier, D., Orgeas, L., Vacher, P.: Mechanical experimental characterisation and numerical
modelling of an unfilled silicone rubber. Polym. Test. 27, 765–777 (2008). https://doi.org/10.1016/j.polymertesting.2008.05.
011

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Mai
Mai, T.-T., Matsuda, T., Nakajima, T., Gong, J.P., Urayama, K.: Distinctive characteristics of internal fracture in tough double
network hydrogels revealed by various modes of stretching. Macromolecules 51, 5245–5257 (2018). https://doi.org/10.1021/
acs.macromol.8b01033

data_type:  :uniaxial, :equibiaxial, :pure_shear
data_name: :Treloar_1944, :Yohsuke, :Meunier, :Mai

```
λ, P =  read_data!(data_name, data_type)

```