PDA

View Full Version : Visc Elasticity


rams
2007-06-02, 22:56
Sir
i have got the master relaxation curve for a viscoelastic material.
i dont know how to fit it with either maxwell model or voigt model
can you please help me in this regard.
thank you

Jorgen
2007-06-05, 03:43
There are different ways to fit linear viscoelastic model to a master relaxation curve. Most major finite element programs have a built-in function for determining the Prony series from a relaxation curve. If you want you can then convert the Prony series to a number of parallel Maxwell elements.

Or you can write a simple script in Matlab, or Mathematical for finding the parameters of the Maxwell or Voigt model.

Best of luck,
Jorgen