Modeling and Simulation of Large Deformation Bi-material Problems Using EFGM

In this paper, the element free Galerkin method (EFGM) has been employed to model bi-material problems containing geometric nonlinearities due to large deformations. Few modifications are made in EFGM to incorporate different types of discontinuities in the formulation. The bi-material interface between the two bodies is modeled by using appropriate enrichment functions. Finally, two bi-material problems are solved using EFGM to demonstrate the applicability of EFGM in the modeling and simulation of large deformation problems. The results obtained by the EFGM technique are compared with those obtained by FEM. The results clearly indicate that the present approach can be efficiently used to model the large deformation problems containing different types of discontinuities in the domain.