| 基于有限元方法的CF/PTFE复合材料界面应力 |
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| 引用本文： | 上官倩芡,.基于有限元方法的CF/PTFE复合材料界面应力[J].上海师范大学学报(自然科学版),2007,36(2):33-38. |
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| 作者姓名： | 上官倩芡 |
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| 作者单位： | 上海师范大学机械与电子工程学院,上海,201418 |
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| 摘 要： | 经表面改性和未经改性的碳纤维（CF）增强聚四氟乙烯（PTFE）复合材料的弹性强度均随着碳纤维含量的增加而增强．以碳纤维增强聚四氟乙烯（CF／PTFE）复合材料弯曲强度试验结果作为依据，开展CF／PTFE复合材料界面应力的研究工作．采用各向异性等参单元，推导出在平面载荷作用下多层纤维增强复合板的层间应力分布．进一步利用有限元方法对CF／PT—FE复合材料的界面进行应力分析，并得到与试验结果相一致的结论．
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| 关 键 词： | 碳纤维 碳纤维增强聚四氟乙烯 各向异性等参单元 界面应力 |
| 文章编号： | 24366155 |
| 修稿时间： | 10 21 2006 12:00AM |
Interface stress analysis of carbon fiber reinforced polytetrafluoroethylene based on finite element analysis |
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| SHANGGUAN Qian-qian.Interface stress analysis of carbon fiber reinforced polytetrafluoroethylene based on finite element analysis[J].Journal of Shanghai Normal University(Natural Sciences),2007,36(2):33-38. |
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| Authors: | SHANGGUAN Qian-qian |
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| Institution: | College of Mechanical and Electronic Engineering, Shanghai Normal University, Shanghai 201418 ,China |
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| Abstract: | The flexural strength of carbon fiber reinforced Polytetrafluoroethylene(CF/PTFE) composite increases with the increase of carbon fiber content both in modified and unmodified CF/PTFE composite.In this paper,the interfacial stress of CF/PTFE composite is investigated based on the experimental results of the bending strength test of the composite.The interlaminar stress distribution of multilayer composite board under a plane load is deduced by anisotropic iso-parametric element.Finite Element Method(FEM) is used to simulate the interfacial stress distribution of CF/PTFE composite,and the result coincides with the experimental results. |
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| Keywords: | Carbon fibers CF/PTFE Anisotropic iso -parametric element l Interracial stress |
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