| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5014330 | European Journal of Mechanics - A/Solids | 2017 | 31 Pages |
Abstract
Efficient isogeometric curved beam element is formulated to investigate the free vibration behavior of spatial beam structures with arbitrary curvature and torsion. Beam structures are described by multi-patch non-uniform rational B-splines. Isogeometric formulation with Timoshenko beam theory is applied with global formulation. Compared with prior formulations that use local formulation within a single patch, the present global formulation of stiffness and mass matrices for multi patch structures is effective in dealing with complex structures. Numerical tests are carried out on a series of models including a conceptual framework of an automobile to show the effectiveness of the present method.
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Authors
Xiangkui Zhang, Yang Xia, Qingyuan Hu, Ping Hu,