| 2.5维机织复合材料的强度特性 |
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| 引用本文： | 董伟锋,朱建勋,肖军.2.5维机织复合材料的强度特性[J].材料科学与工程学报,2010,28(6). |
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| 作者姓名： | 董伟锋 朱建勋 肖军 |
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| 作者单位： | 南京玻璃纤维研究设计院,江苏,南京,210012;南京航空航天大学材料科学与技术学院,江苏,南京,210016;南京玻璃纤维研究设计院,江苏,南京,210012;南京航空航天大学材料科学与技术学院,江苏,南京,210016 |
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| 摘 要： | 针对浅交弯联和浅交直联两种2.5维机织结构,采用VARTM工艺制备了试验件并进行了强度性能测试,通过对其拉伸后的试样进行切片和断面的SEM观察,研究了拉伸过程中复合材料内部的破坏机理。实验结果表明:在相同纱线排列密度情况下,浅交直联结构的经、纬向拉伸强度明显高于浅交弯联结构;随着纱线层数的增加,两种结构的经向拉伸强度均增大,而纬向拉伸强度则有所波动;对于不同结构的2.5维机织复合材料在单一拉伸载荷作用下,表现出不同的损伤模式,且损伤的初始位置和扩展路径具有一定的分散性。
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| 关 键 词： | 复合材料 2.5维机织 拉伸强度 扫描电镜 破坏机理 |
Strength for 2.5D Woven Composites |
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| DONG Wei-feng,ZHU Jian-xun,XIAO Jun.Strength for 2.5D Woven Composites[J].Journal of Materials Science and Engineering,2010,28(6). |
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| Authors: | DONG Wei-feng ZHU Jian-xun XIAO Jun |
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| Affiliation: | DONG Wei-feng(1,2),ZHU Jian-xun1,XIAO Jun2(1.Nanjing Fiberglass Research & Design Institute,Nanjing 210012,China,2.College of Materials Science & Technology,Nanjing University of Aeronautics & Astronautics,Nanjing 210016,China) |
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| Abstract: | As for 2.5D layer-to-layer wavy interlacing and straight interlacing woven structures,the samples were made by vacuum assisted resin transfer moulding(VARTM) technique and tensile tests were performed to determine the mechanical properties.Scanning electron microscopy(SEM) analysis was made on the fracture surfaces and the cross-section of the samples after tensile tests to visualize the damage process.The results indicate that under the same condition of the yarn arranged density,the tensile strength of th... |
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| Keywords: | composites 2 5D woven tensile strength SEM failure mechanism |
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