Shear mechanical properties of the porcine pancreas: Experiment and analytical modelling
| Autor: | L. Noguer, Stéphane Nicolle, J.-F. Palierne |
|---|---|
| Přispěvatelé: | Laboratoire de Biomécanique et Mécanique des Chocs (LBMC UMR T9406), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut Français des Sciences et Technologies des Transports, de l'Aménagement et des Réseaux (IFSTTAR), Laboratoire de Physique de l'ENS Lyon (Phys-ENS), École normale supérieure - Lyon (ENS Lyon)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon, École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS) |
| Jazyk: | angličtina |
| Rok vydání: | 2013 |
| Předmět: |
Materials science
Swine Rheometer 0206 medical engineering Constitutive equation Biomedical Engineering 02 engineering and technology Models Biological Viscoelasticity Biomaterials CISAILLEMENT BIOMECANIQUE Dynamic modulus Animals Porcine pancreas Composite material Pancreas Anatomy 021001 nanoscience & nanotechnology 020601 biomedical engineering Biomechanical Phenomena 3. Good health Nonlinear Dynamics Shear (geology) Mechanics of Materials [SDV.IB]Life Sciences [q-bio]/Bioengineering Shear Strength 0210 nano-technology |
| Zdroj: | Journal of the mechanical behavior of biomedical materials Journal of the mechanical behavior of biomedical materials, Elsevier, 2013, 26, pp. 90-97. ⟨10.1016/j.jmbbm.2013.05.029⟩ Journal of the mechanical behavior of biomedical materials, 2013, 26, pp. 90-97. ⟨10.1016/j.jmbbm.2013.05.029⟩ |
| ISSN: | 1751-6161 1878-0180 |
| DOI: | 10.1016/j.jmbbm.2013.05.029⟩ |
| Popis: | We provide the first account of the shear mechanical properties of porcine pancreas using a rheometer both in linear oscillatory tests and in constant strain-rate tests reaching the non-linear sub-failure regime. Our results show that pancreas has a low and weakly frequency-dependent dynamic modulus and experiences a noticeable strain-hardening beyond 20% strain. In both linear and non-linear regime, the viscoelastic behaviour of porcine pancreas follows a four-parameter bi-power model that has been validated on kidney, liver and spleen. Among the four solid organs of the abdomen, pancreas proves to be the most compliant and the most viscous one. |
| Databáze: | OpenAIRE |
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