Shear mechanical properties of the porcine pancreas: Experiment and analytical modelling
NICOLLE ; NOGUER ; PALIERNE
Type de document
ARTICLE A COMITE DE LECTURE REPERTORIE DANS BDI (ACL)
Langue
anglais
Auteur
NICOLLE ; NOGUER ; PALIERNE
Résumé / Abstract
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.
Source
Journal of the Mechanical Behavior of Biomedical Materials, pp. 90-97 p.
Editeur
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