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The current article is focused on predicting the effective elastic modulus of a 4-dimensional Carbon/Carbon composite by using a hexagonal representative unit cell (RUC). The approach used is finite element analysis (FEA), which is based on continuum mechanics. Displacement boundary conditions are utilized on the FEA model of RUC periodically, to predict the different stiffness constants by using the method of homogenization. It is established that, although the all stiffness properties of RUC is improved by carbon-fiber reinforcements in carbon matrix material, the axial elastic modulus is better improved in the 4D-C/C composite in comparison to pure carbon matrix. It is observed that 4D-C/C reinforcement in carbon matrix is found to provide better axial stiffness properties than out-of-plane elastic and shear moduli.

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Elastic Properties of 4-Dimensional-Carbon Fiber Reinforced Carbon Composite

  • 会议论文

  • 发表日期：

    2025年

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  • Ashish Kumar Srivastava,
  • Vimal Kumar Pathak,
  • Ramanpreet Singh

摘要

The current article is focused on predicting the effective elastic modulus of a 4-dimensional Carbon/Carbon composite by using a hexagonal representative unit cell (RUC). The approach used is finite element analysis (FEA), which is based on continuum mechanics. Displacement boundary conditions are utilized on the FEA model of RUC periodically, to predict the different stiffness constants by using the method of homogenization. It is established that, although the all stiffness properties of RUC is improved by carbon-fiber reinforcements in carbon matrix material, the axial elastic modulus is better improved in the 4D-C/C composite in comparison to pure carbon matrix. It is observed that 4D-C/C reinforcement in carbon matrix is found to provide better axial stiffness properties than out-of-plane elastic and shear moduli.