In vitro rupture local analysis of ATAA
Résumé
Ascending thoracic aortic aneurysms (ATAA) is a relatively common but lethal pathology. Its rupture is provoked when the stress applied to the aortic wall exceeds its capacity to sustain stress [Vorp, 2005]. Several mechanical tests or approaches can be carried out for characterizing the mechanical behaviour of ATAA but, to our knowledge, none of them has ever analysed the rupture locally. Our objective is to quantify the local stress distribution to detect the causes of rupture initiation in ATAA.