An analytical model for the flat punch indentation size effect
- Submitting institution
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The University of Leicester
- Unit of assessment
- 12 - Engineering
- Output identifier
- 1542
- Type
- D - Journal article
- DOI
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10.1016/j.ijsolstr.2019.05.004
- Title of journal
- International Journal of Solids and Structures
- Article number
- -
- First page
- 81
- Volume
- 171
- Issue
- -
- ISSN
- 0020-7683
- Open access status
- Compliant
- Month of publication
- May
- Year of publication
- 2019
- URL
-
-
- Supplementary information
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https://doi.org/10.1016/j.ijsolstr.2019.05.004
- Request cross-referral to
- -
- Output has been delayed by COVID-19
- No
- COVID-19 affected output statement
- -
- Forensic science
- No
- Criminology
- No
- Interdisciplinary
- No
- Number of additional authors
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1
- Research group(s)
-
-
- Proposed double-weighted
- No
- Reserve for an output with double weighting
- No
- Additional information
- The Nix-Gao model [J. Mech. Phys. Solids 46, 411 (1998)] (3362 citations) has been critical in interpreting the indentation size effect for conical and spherical indenters. The significance of this paper is to model the more complex case of indenters with sharp corners for the first time, proposing a mechanism for an analytical model that almost exactly matches simulation results. Dislocations form along very narrow slip lines at sharp corners, similar to key processes in heterogeneous microstructures that lead to failure. This modelling has led to experimental work in proposing new methodologies for investigating materials and micro-forming of metal sheets.
- Author contribution statement
- -
- Non-English
- No
- English abstract
- -