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- W2912482271 abstract "A novel hybrid finite element approach using fundamental solutions in conjunction with the boundary integration is proposed for the analysis of axisymmetric elasticity problems. In the formulation two displacement fields are independently assumed within the element domain and at the element boundary, which combines the advantages of conventional finite and boundary element methods. The resulting system of algebraic equations is symmetric and positive definite, which reduces the spatial dimension of the problem by one. It offers great flexibility in generating the mesh with arbitrary higher-order elements. Firstly, the proposed approach is validated by the analytical solution of a thick-walled hollow cylinder. A good agreement is observed. Meantime, the optimal number and location of source points for fundamental solutions as well as sensitivity to mesh distortion are studied. Finally, two more numerical examples including a flange and a wheel are provided. Compared to ABAQUS, the proposed approach exhibits higher efficiency, better convergence rate and strong capability to capture geometric singularities." @default.
- W2912482271 created "2019-02-21" @default.
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- W2912482271 date "2019-04-01" @default.
- W2912482271 modified "2023-09-25" @default.
- W2912482271 title "A hybrid fundamental-solution-based 8-node element for axisymmetric elasticity problems" @default.
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- W2912482271 doi "https://doi.org/10.1016/j.enganabound.2019.01.015" @default.
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