I am taking part of a theoretical research about viscoelastic material, in particular related to the Kelvin-Voigt model.
For some numerical simulation we need the values of the Lamé elastic and viscoelastic constants of some viscoelastic materials. Preferably, we would to collect the values of such constants for many materials to which the Kelvin-Voigt model can be applied.
Unfortunately, I am not aware of where such values can be found in the literature. Many books and research articles I found are about the measure methods, and do not provide the values I need.
Any help is appreciated.