|
Descripción
|
|
|---|---|
| The aim of this study was to evaluate quantitatively the fracture-by tear and delamination-of bovine pericardium tissues which are usually employed for the manufacture of bioprosthetic valves. A large number of samples (77) were tested in root-to-apex and circumferential directions, according to a standardised tear test (ASTM D 1938). Before performing the tear test, some samples were subjected to 1000 cycles of fatigue to a maximum stress of 3MPa. Fracture toughness of tearing and delamination were computed by following a simple fracture model. The study showed significantly lower values of delamination toughness compared with tear delamination. Moreover, tear forces were different in each test direction, revealing a clear orthotropic behaviour. All these results, as well as the testing procedure, could be of value for future research in the physiological function of pericardium tissues and clinical applications. | |
|
Internacional
|
Si |
|
JCR del ISI
|
Si |
|
Título de la revista
|
Journal of the Mechanical Behavior of Biomedical Materials |
|
ISSN
|
1751-6161 |
|
Factor de impacto JCR
|
3,048 |
|
Información de impacto
|
Datos JCR del año 2013 |
|
Volumen
|
|
|
DOI
|
10.1016/j.jmbbm.2016.06.002 |
|
Número de revista
|
|
|
Desde la página
|
1 |
|
Hasta la página
|
9 |
|
Mes
|
SIN MES |
|
Ranking
|
|