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Prediction of patellofemoral joint kinematics and contact through co-simulation of rigid body dynamics and nonlinear finite element analysis.
- Source :
-
Computer Methods in Biomechanics & Biomedical Engineering . Aug2020, Vol. 23 Issue 11, p718-733. 16p. - Publication Year :
- 2020
-
Abstract
- Joint-level rigid body dynamics simulations, when coupled with tissue-level finite element analyses, can simultaneously provide movement and tissue deformation metrics to understand mechanical interactions within the joint on a multi-scale level. In this study, a co-simulation workflow of a joint-level rigid body model that predicts the relative motion as a function of the non-linear cartilage response predicted by a non-linear implicit finite element solver is presented. Predictions are compared to in-vitro measurements (The Open Knee(s) project) in terms of the mean error and level-of-agreement: pressureerror = 0.46 MPa (level-of-agreement, −0.23 – 1.1 MPa); areaerror = −89 mm2 (level-of-agreement, −280 – 98 mm2) and contact forceerror = 93 N (level-of-agreement, 7.8 – 180 N). The automated co-simulation control algorithm enables multiscale coupling between joint and tissue-level models with real-time two-way communication as opposed to the traditional feed-forward approach of multi-scale models. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10255842
- Volume :
- 23
- Issue :
- 11
- Database :
- Academic Search Index
- Journal :
- Computer Methods in Biomechanics & Biomedical Engineering
- Publication Type :
- Academic Journal
- Accession number :
- 145200201
- Full Text :
- https://doi.org/10.1080/10255842.2020.1761960