Computational Analysis of Torsional Bulking Behavior of 3D 4-Directional Braided Composites Shafts |
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| Authors: | Xinrong Huang Ye Liu Wenfeng Hao Yinghua Liu Jianguo Zhu |
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| Affiliation: | 1.Faculty of Civil Engineering and Mechanics,Jiangsu University,Zhenjiang,People’s Republic of China;2.Department of Engineering Mechanics, Applied Mechanics Lab,Tsinghua University,Beijing,People’s Republic of China |
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| Abstract: | The torsional bulking behavior of 3D 4-directional braided composites shafts was analyzed in this work. First, the unit cell models of 3D 4-directional braided composites shafts with different braiding angles and fiber volume fraction were built up. Then, the elastic parameters of 3D 4-directional braided composites shafts were predicted using the unit cells under different boundary conditions. Finally, the torsional bulking eigenvalues and bulking modes of the composites shafts were obtained by numerical simulation, and the effects of braiding angle and fiber volume fraction on the torsional bulking behavior of 3D 4-directional braided composites shafts were analyzed. The simulation results show that the bulking eigenvalues increase with the increase of braiding angle and fiber volume fraction. This work will play an important role in the design of 3D 4-directional braided composites shafts. |
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