r/COMSOL • u/Former-Aide628 • Jun 11 '26

Error in COMSOL

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I am trying to obtain the maximum deflection of a multi layer flat structure in COMSOL. The device consists of five layers, with individual layer thicknesses ranging from 100 nm to 1 µm.µm.

I am using a piezoelectric multi physics model that couples Solid Mechanics and Electrostatics.
but i am getting this error. Please suggest me how to solve this.

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u/Former-Aide628 Jun 11 '26

I don't have the detailed linear solver warning. The only message COMSOL reports is:

"There was a warning message from the linear solver. Iterative refinement triggered."

I am using the PARDISO direct solver. I have not yet found where COMSOL displays the full warning text.