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With the increasing requirements of material properties in modern engineering fields, the prediction of mechanical properties of material properties is becoming more and more important. In this paper, the un-homogenized and homogenized RVE models of multidirectional carbon fiber reinforced composites (MD-CFRP) are established by using the methods of micromechanics and finite element analysis. After applying the periodic boundary conditions, the representative volume cell model can analyze the stress-strain distribution of the fiber bundles in detail and predict the elastic parameters of MD-CFRP more accurately. By comparing the results with the experimental results and the calculated results of the un-homogenized RVE model, the accuracy of the RVE model is verified for the more complex CFRPs. In addition, by analyzing the effects of different layup angles on the elastic parameters of MD-CFRP, the variation of the elastic parameters of MD-CFRP with the layup angle is obtained, which provides a theoretical framework of cross-scale collaborative optimization for material design.

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Prediction of the Elastic Properties of Multidirectional Carbon Fiber Reinforced Composites Based on Representative Volume Element Simulation

  • 会议论文

  • 发表日期：

    2026年

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  • Miao Su,
  • Guanyu Liu,
  • Lei Liu,
  • Yuxi Xie,
  • Yu Huang,
  • Jianbo Yi

摘要

With the increasing requirements of material properties in modern engineering fields, the prediction of mechanical properties of material properties is becoming more and more important. In this paper, the un-homogenized and homogenized RVE models of multidirectional carbon fiber reinforced composites (MD-CFRP) are established by using the methods of micromechanics and finite element analysis. After applying the periodic boundary conditions, the representative volume cell model can analyze the stress-strain distribution of the fiber bundles in detail and predict the elastic parameters of MD-CFRP more accurately. By comparing the results with the experimental results and the calculated results of the un-homogenized RVE model, the accuracy of the RVE model is verified for the more complex CFRPs. In addition, by analyzing the effects of different layup angles on the elastic parameters of MD-CFRP, the variation of the elastic parameters of MD-CFRP with the layup angle is obtained, which provides a theoretical framework of cross-scale collaborative optimization for material design.