Application in Die Forging Simulation Coupling Finite Element and Element-Free Galerkin Method
The finite element method has been extensively used to predict forming difficulties of die forging problems. However, the analysis for die forging problems with finite element method can lose considerable accuracy due to severely distortional meshes. Based on the equality of elements, an automatically coupling algorithm has been proposed to analyze die forging problems, which converts the FE analysis into the EFG computation to preserve the accuracy in the region where meshes have been severely distorted and still employs the FE method to ensure high computational efficiency in the region where the quality of the FE meshes is acceptable. Numerical example shows that the present algorithms exploit the respective advantages of both the FE method whose computational efficiency is high and the EFG method which can throws out mesh distortions.
D. Li et al., "Application in Die Forging Simulation Coupling Finite Element and Element-Free Galerkin Method", Key Engineering Materials, Vols. 474-476, pp. 1111-1115, 2011