Author/Authors :
Mohamadnejad, S. university of guilan - Dep t of Mech Eng, رشت, ايران , Darvizeh, A. university of guilan - Dep t of Mech Eng, رشت, ايران , Darvizeh, M. university of guilan - Dep t of Mech Eng, رشت, ايران , Ansari, R. University of Guilan - Dept of Mech Eng, ايران , Basti, A. university of guilan - Dep t of Mech Eng, رشت, ايران
Abstract :
To solve crack problems, some coupled methods have been developed in recent years. Most of these methods have some shortcomings such as the need for a transition region. Thefinite element and enriched elementfree Galerkin methods are widely used for this class of problems. In order to take the advantages of these methods while avoiding the disadvantages, it is essential to follow solution approaches based on a combination of them. Prompted by this idea, in this article, the authors mainly aim atfinding a simple way to solve theproblem ofa cracked plate by using a novel coupled finite element-element free Galerkin (FE-EFG) method. In this procedure, the usage of transition region is bypassed by employing the concept of virtual particles. The enriched elementfree Galerkin method is applied to approximate regions near a crack tip and thefinite element method is put to use in the areas far from the crack tip. Static analysis of two-dimensional crack problems, according to the plane stress condition under mode-I loading, has been done. The results from the present method are indicated to be in excellent agreement with those from the existing analytical solutions.
