| 非均匀性对纤维增强复合材料力学性能的影响 |
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| 引用本文： | 张亚芳,齐雷,唐春安.非均匀性对纤维增强复合材料力学性能的影响[J].武汉理工大学学报,2007,29(4):14-17. |
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| 作者姓名： | 张亚芳 齐雷 唐春安 |
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| 作者单位： | 1. 广州大学土木工程学院,广州,510006
2. 大连理工大学土木水利学院,大连,116024 |
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| 基金项目： | 广东省科技厅科技计划;广东省广州市教委科研项目;广东省自然科学基金 |
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| 摘 要： | 研究了材料介质细观非均匀性对纤维增强脆性基复合材料在单轴拉伸荷载下的力学性能的影响。结果表明，材料介质越均匀，复合材料的弹性模量就越接近理论值，其峰值强度也越大：同时，复合材料的非线性行为降低。破坏前的预兆现象减少，并得到相应的声发射结果。
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| 关 键 词： | 非均匀性 纤维增强 复合材料 数值模拟 声发射 |
| 文章编号： | 1671-4431(2007)04-0014-03 |
| 修稿时间： | 2007年1月25日 |
Numerical Simulation on Influence of Heterogeneity on Mechanical Behavior of Composites Reinforced with Fibers |
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| ZHANG Ya-fang,QI Lei,TANG Chun-an.Numerical Simulation on Influence of Heterogeneity on Mechanical Behavior of Composites Reinforced with Fibers[J].Journal of Wuhan University of Technology,2007,29(4):14-17. |
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| Authors: | ZHANG Ya-fang QI Lei TANG Chun-an |
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| Abstract: | The influence of heterogeneity on mechanical behavior of composites reinforced with fibers was researched by using the different homogeneity indexes.The simulation results showed that the fiber reinforcement with higher homogeneity index(which represented that the material was more uniform) could bring out not only higher elastic modulus,but also higher strength.In addition,less nonlinear behavior of the failure process and less portent before the fracture can be observed.Furthermore,the figures of acoustic emission were also presented. |
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| Keywords: | homogeneity indexes fiber reinforcement composite numerical simulation acoustic emission |
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