周计明,孟海明,李大利,齐乐华,鞠录岩.碳纤维增强镁基复合材料(Cf/AZ91D)层压板杨氏模量的多尺度模拟及预测[J].稀有金属材料与工程,2019,48(7):2068~2073.[Jiming Zhou,Haiming Meng,Dali Li,Lehua Qi,Luyan Ju.Multi-scale Modeling of Carbon Fabric Reinforced Magnesium (Cf/AZ91D) Laminates for Young’s Modulus Prediction[J].Rare Metal Materials and Engineering,2019,48(7):2068~2073.]
碳纤维增强镁基复合材料(Cf/AZ91D)层压板杨氏模量的多尺度模拟及预测
投稿时间:2018-03-28  修订日期:2019-05-29
中文关键词:  多尺度建模  层压复合材料  镁基复合材料  杨氏模量
基金项目:国家自然科学基金项目(面上项目,重点项目,重大项目),西北工业大学青年教师国际名校访学支持计划,西北工业大学研究生创意创新种子基金
中文摘要:
      根据碳纤维增强镁基复合材料层压板的真实微观结构特点建立了其多尺度微观力学模型,包括微观尺度下的横向及纵向单胞模型以及介观尺度的结构单胞模型。杨氏模量由中尺度模型计算。宏观力学性能弹性模量根据介观模型进行计算。介观模型中用到的性能参数通过微观模型计算获得。采用多尺度建模方法预测了不同铺层模式的碳纤维增强镁基复合材料层压板弹性模量,并采用对应的实验方法进行了验证。结果表明,采用多尺度建模方法可以成功用于不同铺层方式层压复合材料弹性模量的预测,与实验结果具有相同的变化趋势,但较实验结果偏大。主要是由于模拟过程中忽略了实验中真实存在的合金及纤维性能退化而造成的。本文所提出的多尺度建模方法对于复合材料层压板设计具有重要意义。
Multi-scale Modeling of Carbon Fabric Reinforced Magnesium (Cf/AZ91D) Laminates for Young’s Modulus Prediction
英文关键词:Multi-scale modeling  Laminated composite  Magnesium matrix composite  Young’s modulus
英文摘要:
      Multi-scale models for the unidirectional carbon fabric reinforced magnesium laminates were generated according to the characteristics of its realistic microstructure which included the crosswise and lengthwise unit cell model in microscale and structural unit cell model in mesoscale. The macro mechanical property Young’s modulus was calculated from the mesoscale model. The required properties for mesoscale model during simulation was obtained from microscale model. The Young’s modulus for Cf/AZ91D laminates in different layup modes were predicted by use of multi-scale modeling technique and verified by corresponding experiments. It is shown that multi-scale models can be used to predict the Young’s modulus of laminate composites in different layup modes with the same trend but larger than the experimental results a little bit. It is caused by the perfect assumption of no degradation for matrix alloy and fiber during fabrication. The multi-scale modeling technique proposed in this paper is meaningful for the laminate composite design.
作者单位E-mail
周计明 西北工业大学机电学院 zhoujm@nwpu.edu.cn 
孟海明 西北工业大学机电学院 menghaiming@mail.nwpu.edu.cn 
李大利 西北工业大学机电学院  
齐乐华 西北工业大学机电学院  
鞠录岩 西北工业大学机电学院  
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