Viscoelastic cooling of glass

Hi ,

I am trying to model cooling of molten glass in ABAQUS. Does any one knows how to convert the viscosity data for ABAQUS?

I have viscosity curve against temperature for my glass. In ABAQUS, choosing time based Viscoelastic behaviour, Prony series coefficient needs to input for ABAQUS.

DOes any one knows how can i find theses coefficient from viscosity curves, or any other thing that can be helpfull.

Thanks

Soheil,