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So I have a set of relaxation data and creep data for a solid polymer that I want to analyse. In the relaxation I use the Prony series derived from the generalized maxwell equation (incl a spring) and get a very nice fit. My question is if I should use the same to model the creep? Or should I use the generalized Kelvin Voigt?

I have applied the prony series to the creep data and can get a good fit, but I am a bit confused as to the validity of using this model on creep data.

Hope someone can help me with this,

Lonnie

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# Viscoelastic Models

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