Abstract
This paper presents a coupled model for anisotropic damage and permeability evolution by using a micro-macro approach. The damage state is represented by a space distribution of microcrack density. The evolution of damage is directly linked to the propagation condition of microcracks. The macroscopic free enthalpy function of cracked material is obtained by using micromechanical considerations. It is assumed that the microcracks exhibit normal aperture which is associated with the crack growth due to the asperity of crack faces. By using Darcy's law for macroscopic fluid flow and assuming laminar flow in microcracks, the overall permeability of the representative volume element is obtained by an averaging procedure taking into account the contribution of crack aperture in each orientation.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
