Local material properties of human aorta under dynamic biaxial loading

摘要

A thorough understanding of the mechanisms of traumatic injuries in aortic tissue requires studies of aorta tissue responses to various loading conditions that lead to failure. Nonlinear anisotropic hyperelastic material models were examined to predict the mechanical behavior of small samples of human aorta under oscillatory biaxial loading with large deformations. The results showed that an exponential strain energy function satisfactorily predicted the aorta mechanical characteristics at strains up to 55% and frequencies between 20 and 65 Hz.