Fracture properties of growth plate cartilage compared to cortical and trabecular bone in ovine femora
| Autor: | Annelie-Martina Weinberg, Stefan Fischerauer, Elmar K. Tschegg, Anna Celarek, Stefanie E. Stanzl-Tschegg |
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| Rok vydání: | 2012 |
| Předmět: |
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Materials science Epiphyseal plate Biomedical Engineering Salter-Harris Fractures Fracture mechanics Metaphysis Anatomy Biomaterials Fractures Bone Diaphysis Cartilage medicine.anatomical_structure Mechanics of Materials Tensile Strength Materials Testing mental disorders Ultimate tensile strength medicine Fracture (geology) Animals Cortical bone Femur Composite material |
| Zdroj: | Journal of the Mechanical Behavior of Biomedical Materials. 14:119-129 |
| ISSN: | 1751-6161 |
| Popis: | Fracture mechanical parameters (notch tensile strength, specific fracture energy/crack resistance and specific crack initiation energy) of epiphyseal plate cartilage, trabecular bone (metaphysis) and cortical bone (diaphysis) were determined on ovine femur specimens. The fracture behaviour before and after crack initiation was recorded in force–displacement diagrams from wedge splitting tests. Crack propagation was stable both during and after the formation of a principal crack. This is the main advantage of the wedge-splitting method by Tschegg in comparison with tensile tests. Microscopy of the epiphyseal plate during fracture showed fibre elongation and tearing in the crack tip region. The results of this study can help to understand the mechanics of epiphyseal plate injuries and the obtained values can be used for computational simulations and models. |
| Databáze: | OpenAIRE |
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