Medizinische Universität Graz Austria/Österreich - Forschungsportal - Medical University of Graz
Gewählte Publikation:
SHR Neuro Krebs Kardio Lipid Stoffw Microb
Abel, A; Kahmann, SL; Mellon, S; Staat, M; Jung, A.
An open-source tool for the validation of finite element models using three-dimensional full-field measurements.
Med Eng Phys. 2020; 77:125-129
Doi: 10.1016/j.medengphy.2019.10.015
Web of Science
PubMed
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- Führende Autor*innen der Med Uni Graz
- Jung Alexander
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- Abstract:
- Three-dimensional (3D) full-field measurements provide a comprehensive and accurate validation of finite element (FE) models. For the validation, the result of the model and measurements are compared based on two respective point-sets and this requires the point-sets to be registered in one coordinate system. Point-set registration is a non-convex optimization problem that has widely been solved by the ordinary iterative closest point algorithm. However, this approach necessitates a good initialization without which it easily returns a local optimum, i.e. an erroneous registration. The globally optimal iterative closest point (Go-ICP) algorithm has overcome this drawback and forms the basis for the presented open-source tool that can be used for the validation of FE models using 3D full-field measurements. The capability of the tool is demonstrated using an application example from the field of biomechanics. Methodological problems that arise in real-world data and the respective implemented solution approaches are discussed. Copyright © 2019 IPEM. All rights reserved.
- Find related publications in this database (using NLM MeSH Indexing)
- Algorithms -
- Finite Element Analysis -
- Reproducibility of Results -
- Software -
- Find related publications in this database (Keywords)
- 3D point-set registration
- Global optimization
- Digital image correlation (DIC)
- Biomechanics
- Synthetic bone