A New Enriched Finite Element Method with Application to Static Fracture Problems with Internal Fluid Pressure

A new enriched finite element technique, for modeling crack problems within the framework of the extended finite element method, is presented. In this method, crack nodes with displacement discontinuity degrees of freedom have been defined and used to explicitly describe the crack geometry and deformation. The crack deformation is represented by these displacement discontinuity degrees of freedom which are associated with the crack nodes...