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- Document type:
- Zeitschriftenaufsatz
- Author(s):
- Elhaddad, M.; Valentinitsch, A.; Foehr, P.; Achterhold, K.; Pfeiffer, F.; Kollmannsberger, S.; Kirschke, J.; Ruess, M.; Rank, E.
- Title:
- Micro-CT-based finite cell analysis of vertebral bodies: a validation study
- Abstract:
- In this work, we present a new validation study of the finite cell method (FCM) for bone mechanics. We study FCM models of four human vertebral bodies that are based on micro-CT imaging data, and compare the numerical predictions of the displacement fields to the deformation measured in compression experiments. We employ digital volume correlation (DVC) to estimate the local displacement fields of the compression experiments. The DVC data is interpolated on the boundary and used to define the displacement boundary conditions for the FCM models, whereas the interior DVC displacements are compared to the numerical predictions of the FCM models. Analysis of the results shows very good agreement between the DVC data and the FCM predictions for all components of the displacements of all examined specimens (0.73 < R2 < 0.97, slope of the regression line =0.91–1.14). The results illustrate the potential of the FCM as a simulation tool for micro-CT based analysis, as an attractive alternative to the well-established μ-FEM.
- Keywords:
- LOCenter
- Journal title:
- International Journal for Numerical Methods in Biomedical Engineering
- Year:
- 2021
- Journal volume:
- x
- Year / month:
- 2021-10
- Journal issue:
- x
- Pages contribution:
- x-x
- Language:
- en
- Fulltext / DOI:
- doi:10.1371/journal.pone.0180151
- Status:
- Preprint / submitted
- Ingested:
- 28.06.2021
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