Dynamic stresses and strains in the left ventricular wall based on large deformation theory (Q1370842)

The authors study large dynamic deformations of left ventricular wall; in particular, they examine the influence of inertial effects on the stress, strain and stretch ratios, wall thickness and myocardial stiffness. During one complete cardiac cycle, wall thickness, stretch ratios and stress at the inner wall are constant when static analysis is used, whereas in the dynamic analysis they vary with time. The authors show that the effect of inertia term on the difference between the static and dynamic circumferential stresses is a maximum (one percent) at the endocardium inner wall) and zero at the epicardium (outer wall).