Computation of eigenstresses in three-dimensional patient-specific arterial walls

Abstract

In this contribution we propose a numerical scheme for the incorporation of residual stresses inarterial walls.Throught he introduction of suitable stress in variants a local,time-independent residual stress tensor is introduced and computed iteratively. For the update of the residual stress tensoranon-local criterion is defined. The method is tested for patient-specific,three-dimensional healthy and degenerated arterial segments. Moreover, for a sliced and unloaded artery the opening angle caused by the eigenstresses can be predicted.