Physically based simulation of heterogeneous deformable models using XFEM
Farag, Sara, Abdelrahman, Wael, Nahavandi, Saeid and Creighton, Douglas 2011, Physically based simulation of heterogeneous deformable models using XFEM, in INDIN 2011 : IEEE International Conference on Industrial Informatics, IEEE, Piscataway, N. J., pp. 233-237.
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Physically based simulation of heterogeneous deformable models using XFEM
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.
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