Dynamic inflation of hyperelastic spherical membranes

The dynamic inflation of hyperelastic spherical membranes of a Mooney-Rivli n material is analyzed in this study. Various inflation regimes are identif ied through ranges of the material parameters and driving pressure. In part icular, the conditions for oscillatory inflation around the static fixed po int are examined. It is found that, for a given material, the frequency of oscillation exhibits a maximum at some pressure level, which tends to incre ase for materials closer to neo-Hookean behavior. (C) 1999 The Society of R heology. [S0148-6055(99)00205-9].