A coupled element free Galerkin/boundary element method for stress analysis of two-dimensional solids

✍ Scribed by Y.T. Gu; G.R. Liu

• Publisher: Elsevier Science
• Year: 2001
• Tongue: English
• Weight: 361 KB
• Volume: 190
• Category: Article
• ISSN: 0045-7825
• DOI: 10.1016/s0045-7825(00)00324-8

✦ Synopsis

Element free Galerkin (EFG) method is a newly developed meshless method for solving partial dierential equations using Moving Least-Squares interpolants. It is, however, computationally expensive for many problems. A coupled EFG/boundary element (BE) method is proposed in this paper to improve the solution eciency. A procedure is developed for the coupled EFG/BE method so that the continuity and compatibility are preserved on the interface of the two domains, where the EFG and BE methods are applied. The present coupled EFG/BE method has been coded in FORTRAN. The validity and eciency of the EFG/BE method are demonstrated through a number of examples. It is found that the present method can take the full advantages of both EFG and BE methods. It is very easy to implement, and very ¯exible for computing displacements and stresses of desired accuracy in solids with or without in®nite domains.