Comparison between the mechanical behavior of the human healthy AA and commercial prostheses under various mechanical loadings

Audrey Lemercier (1, 2, 3) , Lucie Bailly (1) , Christian Geindreau (2) , Mamadou Toungara (2) , Pierre Latil (2) , Laurent Orgéas (2) , Valérie Deplano (1) , Nadège Boucard (3)

1 IRPHE - Institut de Recherche sur les Phénomènes Hors Equilibre
2 3SR - Laboratoire sols, solides, structures - risques [Grenoble]
3 MDB Texinov - MDB Texinov

Standard chirurgical treatment of abdominal aortic aneurysm (AAA) involves the placement of tubular synthetic aortic prostheses. Most of these implants are made up of polyester textiles or porous expanded polytetrafluoroethylene. Normalized tests are dedicated to their assessment (ISO7198:1998). However, such experiments are not sufficient to characterize the complete mechanical performance of these implants (Le Magnen et al., 2001) and to ensure their mechanical compatibility with the host artery. Thus, the design of mechanically compatible vascular prostheses still remains a challenge. Within this context, a full comparison of the mechanical behavior of the human healthy abdominal aorta (AA) with commercial prostheses is proposed. An original numerical database on the mechanical behavior of human AA subjected to various mechanical loadings is first built and then compared with experimental data obtained from mechanical tests performed on prostheses.

Mots clés: AA; textile prosthesis; multiaxial tensile tests; bending; inflation

Domaines: Biomécanique [physics.med-ph]; Biomécanique [physics.med-ph]

Audrey Lemercier, Lucie Bailly, Christian Geindreau, Mamadou Toungara, Pierre Latil, et al.. Comparison between the mechanical behavior of the human healthy AA and commercial prostheses under various mechanical loadings. 38th Congress of the Societe de Biomecanique, 2013, Marseille, France. pp.315-317, ⟨10.1080/10255842.2013.815930⟩. ⟨hal-00924984⟩