| 三维编织复合材料加筋壳体的稳定性研究 |
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| 引用本文： | 乙丛涛,吴林志,果立成,曾涛. 三维编织复合材料加筋壳体的稳定性研究[J]. 哈尔滨工业大学学报, 2004, 36(11): 1511-1513 |
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| 作者姓名： | 乙丛涛 吴林志 果立成 曾涛 |
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| 作者单位： | 哈尔滨工业大学,复合材料研究所,黑龙江,哈尔滨,150001;哈尔滨工业大学,复合材料研究所,黑龙江,哈尔滨,150001;哈尔滨工业大学,复合材料研究所,黑龙江,哈尔滨,150001;哈尔滨工业大学,复合材料研究所,黑龙江,哈尔滨,150001 |
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| 摘 要： | 采用单胞几何模型(也称纤维几何模型)计算了编织复合材料的力学参数，并把其作为输入数据用来建立结构的有限元模型，进一步研究四向三维编织复合材料加筋壳体的稳定性问题，分析了结构编织参数对加筋壳体稳定性的影响．结果表明，合理选择结构的编织参数可以有效改善三维编织壳体的稳定性.
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| 关 键 词： | 三维编织复合材料 加筋壳体 有限元 稳定性 |
| 文章编号： | 0367-6234(2004)11-1511-03 |
| 修稿时间： | 2003-05-30 |
Stability of 3D braided composite stiffened shells |
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| YI Cong-tao,WU Lin-zhi,GUO Li-cheng,ZENG Tao. Stability of 3D braided composite stiffened shells[J]. Journal of Harbin Institute of Technology, 2004, 36(11): 1511-1513 |
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| Authors: | YI Cong-tao WU Lin-zhi GUO Li-cheng ZENG Tao |
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| Abstract: | The unit-cell geometry model (FGM) is utilized to calculate the mechanical parameters of the braided composites which are taken as input parameters to establish the finite element model. And then, this model is used to study the stability of the 4-directional 3-dimensional braided composite stiffened shells. The influences of the braiding parameters on the stability of the stiffened shells are investigated. It is found that the stability of the stiffened shells can be improved by choosing appropriate braiding parameters. |
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| Keywords: | 3D braided composites stiffened shells finite element stability |
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