A study of bi-layered thick walled fiber’s reinforced hollow cylinder submitted to both torsion deformation and radially directed fluid diffusion

Abstract

This paper is concerned with the modeling of steady radially directed fluid diffusion into a fibrous two-layer thick-walled hollow cylinder undergoing large deformation The approach presented here, based on the mechanics of interacting continua, seems to be a viable framework to better understanding of the coupled interaction between steady fluid flow and solid large deformation in saturated porous soft materials. Taking advantage of a perfect interface hypothesis between the two-layers of the thick-walled hollow cylinder; and a particular properties of rubber–fluid mixture, new results dealing with pressure difference, stress distribution, … at each layer as well as at the interface are obtained when varying stiffness of each layer. Our results could potentially help in understanding de-stiffening therapy, which is appearing as a possible strategy to reduce the occurrence of strokes and enhance the functional prognosis; they also be adopted as an effective aid to improve methods of designing prosthetic conduits for use with living tissue.