You commented that for small deformation(strain),Neo-Hookean model, it can be assumed that
E: Young's Modulus
G: Shear Modulus
Can you please define the so called small deformation. e.g strain<15% or <100%? so that the equation above is valid?
If the deformation is large and the material manufacturer provided me only the Young's modulus and Poisson's ratio, is there anyway or formula i can apply to obtain the C10 coeeficient for NeoHookean model?