Hi,

I wanted to perform an analysis using ansys to find out the dissipation of acoustic wave in pdms material. So I found that pdms being a viscoelastic material, we need to perform a nonlinear analysis with the prony series for shear and volumetric modulus entered in the viscoelastic properties for the pdms material. The acoustic wave load was of the frequency 100MHz, so I performed a transient analysis in ansys for a time equal to 250ns with substep of 0.5ns. But after running for a while the analysis terminated due to nonconvergence.

Can anyone help me to solve this issue

1. Is it right to set the viscoelastic properties for pdms to study its acoustic wave dissipation

2. If the first one makes sense, how can I make sure that I get a result out of the transient analysis that I perform

Pls if any one could help me!

Thanks in advance!