| 复合材料整体加筋板的七点弯曲试验与数值分析 |
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| 引用本文： | 叶强,夏翔,肖闪闪等. 复合材料整体加筋板的七点弯曲试验与数值分析[J]. 南京航空航天大学学报, 2011, 43(4) |
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| 作者姓名： | 叶强 夏翔 肖闪闪等 |
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| 作者单位： | 1. 南京航空航天大学航空宇航学院,南京,210016
2. 中国飞机强度研究所,西安,710065 |
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| 基金项目： | 国家自然科学基金(10872091)资助项目; 江苏省普通高校研究生科研创新计划(CX09B-084Z)资助项目; 南京航空航天大学博士生创新与创优基金(BCXJ09-02)资助项目 |
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| 摘 要： | 研究了复合材料整体加筋板七点弯曲试验的失效表征问题。在有限元分析的基础上,设计了七点弯曲试件和试验夹具。在试验研究和有限元计算的基础上,对七点弯曲试验的失效机理进行了讨论分析。通过对一系列七点弯曲试验模型的分析,获得了复合材料加筋板典型部位的失效包线,并给出了失效表征方法。最后给出了指导复合材料整体加筋板结构细节设计的建议。
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| 关 键 词： | 整体加筋板 七点弯曲试验 粘接元 失效表征 |
Numerical and Experimental Analysis on Seven-Point Bending Test of Integrated Composite Panels |
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| Ye Qiang,Xia Xiang,Xiao Sansan,Chen Puhui,Li Xinxiang,Chai Yanan. Numerical and Experimental Analysis on Seven-Point Bending Test of Integrated Composite Panels[J]. Journal of Nanjing University of Aeronautics & Astronautics, 2011, 43(4) |
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| Authors: | Ye Qiang Xia Xiang Xiao Sansan Chen Puhui Li Xinxiang Chai Yanan |
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| Affiliation: | Ye Qiang1,Xia Xiang1,Xiao Sansan1,Chen Puhui1,Li Xinxiang2,Chai Yanan2(1.College of Aerospace Engineering,Nanjing University of Aeronautics & Astronautics,Nanjing,210016,China,2.Aircraft Strength Research Institute of China,Xi'an,710065,China) |
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| Abstract: | The failure characterization is studied for the sevenpoint bending tests of integrated composite panels.The specimen and fixture of seven-point bending test are designed based on the finite element analysis.Furthermore,the failure mechanisms of the specimen are discussed based on the test results and the finite element simulations.The failure envelop of the typical structural details is obtained and the method is presented for the failure characterization of the specimen by numerically simulating a series o... |
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| Keywords: | integrated composite panel seven-point bending test cohesive element failure characterization |
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