Possible to get Prony Values from stress and strain?

[Werspike]

Hallo,

i'm new to the topic of Elastomers and Viscoelastic - i need for Abaqus the prameters g_i Prony, k_i Prony and tau_i Prony. All i have are stress and strain values from experiments - is it possible to get the Prony Values from these?

Thank in advance

Werspike

[Jorgen]

Yes, it is possible if you have stress-strain data at different strain rates and/or with stress-strain relaxation or creep.

The MCalibration (http://polymerfem.com/content.php?9-MCalibration)software can be used to obtain the viscoelastic parameters from stress-strain data.

-Jorgen