Tip Radius

Use the Tip Radius tab to calibrate the indenter tip radius by Hertzian fitting.

Tip Radius tab in micromechanics-indentationGUI

Inputs

Hertzian calibration file
frame compliance, if needed for your dataset

Typical steps

Load the Hertzian calibration file.
Run frame compliance calibration if needed.
Perform the tip-radius calculation.
Inspect the fit and the calibrated tip radius.

Outputs to inspect

Look at:

the Hertzian fit quality
the fitted region
whether the calibrated tip radius is physically reasonable

Key plots

The key plot is the Hertzian fitting plot. It tells you:

whether the chosen fitting window is appropriate
whether the model follows the experimental data
whether the final tip radius is supported by the fit

Common problems

Typical issues include:

using a dataset that is not appropriate for Hertzian fitting
fitting the wrong region
accepting a radius value without checking fit quality

Next step

The calibrated tip radius is often used later in:

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