Thank you Mr. Bulat and Mr. Doyle,
My relaxation data is Stress vs Time, and I am aware of how to curve fit it in the Engineering Data.
But, I also have already curve fitted an hyperelastic model to define my material using Ogden. As far as I am conserned, it is not possible to perform 2 curve fitting in the same material in the engineering data. Please correct me if I am wrong.
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