| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 7209037 | Journal of the Mechanical Behavior of Biomedical Materials | 2014 | 11 Pages |
Abstract
The present study investigated the influence of fibre-matrix and fibre-fibre shear interaction in ovine intervertebral discs. Parameter identifications were conducted based on in house experiments, in which moment-angle relations in flexion/extension, lateral bending and axial rotation were determined. A specimen-specific geometrical description of the numerical models could be attained with CT images and T2 maps. The parameter identification revealed that material laws with and without shear interaction were able to predict the mechanical tests equally well. However, when shear interaction was considered, the identified behaviour of the lamellae better matched published stress-strain relations in uniaxial and biaxial stress states.249
Related Topics
Physical Sciences and Engineering
Engineering
Biomedical Engineering
Authors
Christoph Reutlinger, Alexander Bürki, Vaclav Brandejsky, Lars Ebert, Philippe Büchler,