Nanoscale Instrumented Indentation Testing with the Current Capabilities of MOOSE and Marmot

Graduate Thesis Or Dissertation

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Citeable URL: https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/vd66w792s

Attribute Name	Values
Creator	VandenBroeder, Gavin T.
Abstract	Nanoscale Instrumented Indentation Testing (IIT) is a material characterization technique that is used to determine mechanical properties. The size effects present at this scale make it difficult to expand findings to a bulk scale. Modeling can be used to bridge this gap and better understand nanoscale IIT and the size effect. The current capabilities of MOOSE and Marmot are used to produce two accessible and reproducible IIT models for this purpose. Two indentation tips are simulated to match collected experimental data. This work finds that the Berkovich tip simulations underpredict experimental force versus displacement data by an order of magnitude. While fine-grain alpha uranium parameterized spherical indentation simulations result in over-prediction of experimental force versus displacement curves by roughly 25%. Informed future work is discussed and suggested for the improvement of these models and their accuracy.
License	All rights reserved
Resource Type	Masters Thesis
Date Issued	2023-07-26
Degree Level	Master's
Degree Name	Master of Science (M.S.)
Degree Field	Nuclear Engineering
Commencement Year	2024
Advisor	Chen, Tianyi
Committee Member	Minc, Leah Briggs, Samuel A. Reese, Steven R.
Academic Affiliation	Nuclear Science and Engineering
Rights Statement	In Copyright
Publisher	Oregon State University
Peer Reviewed	No
Language	English [eng]

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