I am interested in methods/equations for calculating the interaction volume during elastic nanoindentation. Specifically, I'm interested in determining how much of the material (other than the displaced volume) is responsible for the observed properties and measurements. Insights into methodologies or approaches to assess the proportion of material contributing to these responses would be highly valuable.
Hi,
I'm assuming you would like to measure a relatively thin film of your material. Measuring the elastic modulus for thin films is not straightforward, unlike hardness, which is a short-range property where a rule of thumb of about 10% of the film thickness can be used to determine an accurate value. The elastic zone is much bigger than the plastic zone. Therefore, the indentation depth has to be chosen wisely. You can find more details in our paper. Article Accurate measurement of thin film mechanical properties usin...
Here, we describe how to accurately measure thin films' elastic modulus and hardness and their corresponding elastic and plastic zones. Note that to get precise values, your tip should be very sharp.
I hope our paper can help you, even if it would not be a thin film.
Best Regards,
Claus
Dear Dr Claus O. W. Trost ,
I appreciate your response and for sharing your paper. Your work is indeed intriguing. However, my case involves bulk metallic glass rather than thin films. I'm curious if similar simulations can be applied to metallic glass systems, or if you have any suggestions on assessing the interaction region or volume beneath the contact during elastic loading. Any insights you can provide on this matter would be greatly appreciated. Thanks again.
Cheers,
Reza
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