FEA of nanoindentation?

08 December 2023 1 3K Report

Hi,

I am doing 2D FEA analysis of nanoindentation. It has been peformed on displacement control where the indenter moves 300nm vertically. Unfortunately, I am getting a kind of zigzag curve in the load and displacement plot. I have tried to refine the mesh but am still having the same issues. is there any suggestion to solve this problem? I have attached the plot

Massimiliano Berardi

It is difficult to give specific suggestions as I lack most of the context, but I would start by checking which contact formulation you are using, as well as the contact penetration error for each simulation step.

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