A hyperelastic model for bio-tissues & a 2nd kind of Poisson effect
Constitutive models are of fundamental importance to many biomedical problems such as the rupture prediction of aortic aneurysms. Existing structure-based constitutive models such as the widely used Gasser–Ogden–Holzapfel (GOH) model usually need to specify the number of fiber family which may be difficult to identify for many kinds of tissues. In this study, we developed a novel hyperelastic model for biological tissues by considering a fiber distribution as a whole distribution which does not need the information of the number of fiber family.