کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
512629 866418 2012 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fast multipole method applied to Symmetric Galerkin boundary element method for 3D elasticity and fracture problems
موضوعات مرتبط
مهندسی و علوم پایه مهندسی کامپیوتر نرم افزارهای علوم کامپیوتر
پیش نمایش صفحه اول مقاله
Fast multipole method applied to Symmetric Galerkin boundary element method for 3D elasticity and fracture problems
چکیده انگلیسی

The solution of three-dimensional elastostatic problems using the Symmetric Galerkin Boundary Element Method (SGBEM) gives rise to fully populated (albeit symmetric) matrix equations, entailing high solution times for large models. This paper is concerned with the formulation and implementation of a multi-level fast multipole SGBEM (FM-SGBEM) for elastic solid with cracks. Arbitrary geometries and boundary conditions may be considered. Numerical results on test problems involving a cube, single or multiple cracks in an unbounded medium, and a cracked cylindrical solid are presented. BEM models involving up to 106 BEM unknowns are considered, and the desirable predicted trends of the elastostatic FM-SGBEM, such as a O(N) complexity per iteration, are verified.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Analysis with Boundary Elements - Volume 36, Issue 12, December 2012, Pages 1838–1847
نویسندگان
, , , ,