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Physically based simulation of heterogeneous deformable models using XFEM

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4 Author(s)
Farag, S. ; Center for Intell. Syst. Res., Deakin Univ., Geelong, VIC, Australia ; Abdelrahman, W. ; Nahavandi, S. ; Creighton, D.

This paper addresses the problem of heterogeneous deformable model accuracy using the finite element methods (FEM). Classic FEM uses predefined shape functions for interpolation and does not account easily for regions of discontinuities. Extended finite element methods (XFEM) use enrichment functions to compensate for the change in an element degrees of freedom (DoFs) in deformable objects. The XFEM is an accurate and fast method as no remeshing is required. In this study we investigate the performance of XFEM and demonstrate how it may be applied to discontinuities of materials that exist in heterogeneous (piece-wise homogeneous) models. The results show realistic stress prediction compared to modeling the same objects with classic FEM.

Published in:

Industrial Informatics (INDIN), 2011 9th IEEE International Conference on

Date of Conference:

26-29 July 2011