Effective elastic properties of doubly periodic array of functionally graded inclusions by an iterative FE-BE coupling method

This paper is devoted to the study of the effective elastic properties of doubly periodic array of functionally graded inclusion problems by an iterative FE-BE coupling method. This method has some advantages compared with boundary element method (BEM), e.g. (1) inclusions can be isotropic, orthotropic, anisotropic or functionally graded materials; (2) various shaped inclusions can be easily solved; (3) the fundamental solutions for functionally graded inclusion materials are not needed. Some numerical examples are used to validate the applicability and reliability of the adopted scheme. (paper)