| 复合材料单钉接头的损伤累积模拟 |
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| 引用本文： | 华玉,郦正能,冠长河,罗小东,何庆芝.复合材料单钉接头的损伤累积模拟[J].航空学报,1995,16(2):26-32. |
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| 作者姓名： | 华玉 郦正能 冠长河 罗小东 何庆芝 |
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| 作者单位： | 北京航空航天大学5 系, 北京 100083 |
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| 摘 要： | 给出一复合材料接头损伤累积模型，包括分类损伤判据、损伤区刚度衰减和总体破坏判据；将该模型结合有限元法模拟单钉接头的损伤破坏过程，包括损伤起始、类型、累积及应力重分布的确定以及接头强度的预测；研究了３种铺层的碳／环氧复合材料单钉接头的损伤累积并与现有结果做了比较。
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| 关 键 词： | 复合材料层板 损伤累积 接头 |
| 收稿时间： | 1993-12-10 |
| 修稿时间： | 1994-04-15 |
PROGRESSIVE DAMAGE SINULATION FOR SIMGLE FASTENER COMPOSITE JOINTS |
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| Hua Yu,Li Zhengneng,Kou Changhe,Luo Xiaodong,He Qingzhi.PROGRESSIVE DAMAGE SINULATION FOR SIMGLE FASTENER COMPOSITE JOINTS[J].Acta Aeronautica et Astronautica Sinica,1995,16(2):26-32. |
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| Authors: | Hua Yu Li Zhengneng Kou Changhe Luo Xiaodong He Qingzhi |
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| Institution: | fifty Dept. Beijing University of Aeronautics and Astronautics, Beijing 100083 |
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| Abstract: | A progressive damage model is developed for composite joints.The model combined with finite element approach is used to simulate the damage-failure process of a single fastener composite joints.The mdel consists of classified damage criteria,stiffness degradation in damage zone and ultimate failure criteria.The simulation is capable of assessing damage beginning,damage types and damage accumulation,and of predicting the ultimate strength and the ultimate failure mode of the joint.Numerical calculations are given and the reults are compared with earlier papers. |
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| Keywords: | composite laminate progressive damage joint fittings |
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