چکیده مقاله
The extended finite element method XFEM has proven to be an accurate and robust method for solving problems in fracture mechanics and improve weakness of classical finite element in modeling discontinuities This method’s efficiency is in modeling discontinuity incompatible with the mesh The discontinuities are modeled by using a set ofcontinuous and discontinuous functions that called enrichment functions and have partition of unity property Also isogeometric analysis that using NURBS basis functions has proven to improve weakness of finite element in modeling complex geometries In this paper we enriched the isogeometric method for analyzing of structures with cracks or discontinuities We take advantages of XFEM in modeling discontinuities and isogeometric in modeling the geometry exactly and combined together The results in numerical examples have been compared between these methods
کلیدواژهها
نویسندگان
Mostafa ghelichi
MS student in structural engineering
Saeed shojaee
Assistant professor
Ebrahim izadpanah
Mostafa ghelichi MS student in structural engineeringSaeed shojaee Assistant professor
شیوه ارجاع
ghelichi, Mostafa and shojaee, Saeed and izadpanah, Ebrahim,1391,Improvement of isogeometric method in crack analysis,9th International Congress on Civil Engineering,Isfahan
ارائهشده در
مجموعه مقالات نهمین کنگره بین الملی مهندسی عمران19 اردیبهشت 1391 · اصفهان