Volume 26 Issue 2
Feb.  2000
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Article Contents
LIU Zhen-guo, LU Meng, MAI Han-chao, et al. Numerical Prediction of Moduli of 3-D and 4-step Braided Composites[J]. Journal of Beijing University of Aeronautics and Astronautics, 2000, 26(2): 182-185. (in Chinese)
Citation: LIU Zhen-guo, LU Meng, MAI Han-chao, et al. Numerical Prediction of Moduli of 3-D and 4-step Braided Composites[J]. Journal of Beijing University of Aeronautics and Astronautics, 2000, 26(2): 182-185. (in Chinese)

Numerical Prediction of Moduli of 3-D and 4-step Braided Composites

  • Received Date: 15 Sep 1998
  • Publish Date: 29 Feb 2000
  • The parameterized modeling technology for three dimensionally and 4-step braided composites is studied. First, the ""-type model of a representative unit cell is presented for FEM numerical prediction, which more really simulates the inner meso-structures of the materials because of considering the interactions of them. Then, the boundary conditions and constrain conditions of the unit cell model are discussed and the longitudinal and transverse elastic moduli and Poisson-s ratio of the materials are obtained by FEM calculation. Finally, the predicted results are compared with those of experiments, and it is showed that they are in good agreement with each other.

     

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