A novel contact interaction formulation for voxel‐based micro‐finite‐element models of bone
- Submitting institution
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The University of Sheffield
- Unit of assessment
- 12 - Engineering
- Output identifier
- 2727
- Type
- D - Journal article
- DOI
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10.1002/nme.5810
- Title of journal
- International Journal for Numerical Methods in Engineering
- Article number
- -
- First page
- 411
- Volume
- 115
- Issue
- 4
- ISSN
- 0029-5981
- Open access status
- Compliant
- Month of publication
- May
- Year of publication
- 2018
- URL
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- Supplementary information
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- 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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2
- Research group(s)
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-
- Proposed double-weighted
- No
- Reserve for an output with double weighting
- No
- Additional information
- A novel contact formulation SS-SC is developed for voxel-based finite-element models. Compared to the state-of-the-art 'bonded' formulation, SS-SC reduces errors in predicted stresses: for a typical bone biomechanics problem (SS-SC, 2%; bonded, 42%) and generally, for a range of voxel mesh refinements. As SS-SC formulation maintains voxel regularity, advantages of voxel models compared to irregular mesh models such as minimal pre-processing and high efficiency are retained. These advantages have underpinned the use of voxel-based finite-element solvers e.g. ParOSol in bone research and FDA-cleared VirtuOst(TM) clinically. A PhD student is implementing SS-SC formulation on ParOSol (collaboration: Professor of Biomechanics, ETH Zurich).
- Author contribution statement
- -
- Non-English
- No
- English abstract
- -