Mechanical characterization of the thoracic ascending aortae

Aaron Romo (1, 2, 3, 4) , Stéphane Avril (1, 2, 3, 4) , Pierre Badel (1, 2, 3, 4) , Jérôme Molimard (1, 2, 3, 4) , Ambroise Duprey (5) , Jean-Pierre Favre (5)

1 CIS-ENSMSE - Centre Ingénierie et Santé
2 IFRESIS - Institut Fédératif de Recherche en Sciences et Ingénierie de la Santé
3 DB2M-ENSMSE - Département Biomécanique et Biomatériaux
4 LCG-ENSMSE - UMR 5146 - Laboratoire Claude Goux
5 DCV - Département de Chirurgie Vasculaire

In this study the digital image correlation technique is used for characterizing the mechanical and fracture properties of aneurysmal tissues. The tissues which have been taken from the thoracic ascending aorta of diseased patients are tested in a bulge inflation test. The approach is original in the sense that it gives access to the local stress fields in the tissue and to local analysis of fracture. Applications to the dynamic behavior and fracture of vascular tissues are envisaged.

Mots clés: Mechanical characterization; thoracic ascending aortae

Domaines: Génie des procédés; Biomécanique [physics.med-ph]; Biomécanique [physics.med-ph]

Aaron Romo, Stéphane Avril, Pierre Badel, Jérôme Molimard, Ambroise Duprey, et al.. Mechanical characterization of the thoracic ascending aortae. IRCOBI (International Research Council on Biomechanics of Injury), Sep 2012, France. IRC 12-72 pp. 638-649. ⟨hal-00778322⟩