کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7169015 1463038 2018 18 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
An X-FEM investigation of hydro-fracture evolution in naturally-layered domains
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
An X-FEM investigation of hydro-fracture evolution in naturally-layered domains
چکیده انگلیسی
In this paper, a computational model is developed for the simulation of hydro-fracture growth in naturally layered impervious media using the extended finite element method (X-FEM). The equilibrium equation of the bulk is solved in conjunction with the hydro-fracture inflow and continuity equations using the staggered Newton method. The hydro-fracture inflow is governed by the lubrication theory, where the permeability of the fracture is incorporated by taking advantage of the cubic law. The Eigen-function expansion method is utilised in order to develop enrichment functions suited for the asymptotic stress field in the vicinity of the singular points. An energy release rate-based criterion is used in order to study the competition between hydro-fracture penetration/deflection at the material interface. Finally, the robustness of the computational framework is explored by means of numerical simulation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Fracture Mechanics - Volume 191, 15 March 2018, Pages 187-204
نویسندگان
, , , ,