A local point interpolation method for stress analysis of two-dimensional solids
DOI: 10.12989/SEM.2001.11.2.221
关键词:
摘要: A local point interpolation method (LPIM) is presented for the stress analysis of two-dimensional solids. weak form developed using weighted residual locally in The polynomial interpolation, which based only on a group arbitrarily distributed nodes, used to obtain shape functions. LPIM equations are derived, and interpolation. Since functions possess Kronecker delta function property, essential boundary condition can be implemented with ease as conventional finite element (FEM). truly meshless method, it does not need any or mesh both field background integration. implementation procedure simple strong formulation methods. has been coded FORTRAN. validity efficiency present demonstrated through example problems. It found that very easy implement, robust obtaining displacements stresses desired accuracy
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