You are here
Prony series with temperature dependent stiffness
Hello,
I have implemented a viscoelastic model (Simo/Hughes approach: Prony series for small strain)
in Abaqus using Umat and it works fine for dynamic isothermal simulations (I validated with the Prony series implemented in Abaqus).
Now, I want to consider thermal loads (I have temperature dependent stiffnesses from a DMA experiment).
How should I use these temperature dependent stiffnesses in the model?
In my code I only have a $G_infty$ = constant and the $g_k$ and $\tau_k$. Should I consider the $G_infty$ as funtion of the temperature using a table?
Many thanks
Recent comments