An open-source tool for the validation of finite element models using three-dimensional full-field measurements
- 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.
Author: | Alexander Abel, Stephanie Lucina KahmannORCiD, Stephen Mellon, Manfred StaatORCiD, Alexander JungORCiD |
---|---|
DOI: | https://doi.org/10.1016/j.medengphy.2019.10.015 |
ISSN: | 1350-4533 |
Parent Title (English): | Medical Engineering & Physics |
Publisher: | Elsevier |
Place of publication: | Amsterdam |
Document Type: | Article |
Language: | English |
Year of Completion: | 2020 |
Volume: | 77 |
First Page: | 125 |
Last Page: | 129 |
Link: | https://doi.org/10.1016/j.medengphy.2019.10.015 |
Zugriffsart: | weltweit |
Institutes: | FH Aachen / Fachbereich Medizintechnik und Technomathematik |
FH Aachen / IfB - Institut für Bioengineering | |
collections: | Verlag / Elsevier |