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    An Orphan-cell-free Overset Method Based on Meshless MLS Approximation for Coupled Analysis of Overlapping Finite Element Substructures

    Dong Ju Woo1, Jin Oh Yang1, Beom-Soo Kim1, Seungsoo Lee1, Jin Yeon Cho2

    CMES-Computer Modeling in Engineering & Sciences, Vol.30, No.3, pp. 149-162, 2008, DOI:10.3970/cmes.2008.030.149

    Abstract A new orphan-cell-free overset method is proposed to carry out the coupled analysis of overlapping finite element substructures. In the proposed overset method, the meshless MLS (Moving Least Squares) approximation is used to obtain the boundary data for the overlapped interface, whereas the Lagrange interpolation scheme has been commonly used in the conventional overset methods. The meshless character of MLS approximation makes it possible to overcome the problem of orphan-cell, which is often encountered in the conventional overset methods. Further, a new connectivity matrix solution procedure is developed to reduce the computational time in the More >

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