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作者:

Peng, X.-R. (Peng, X.-R..) | Yang, Q.-S. (Yang, Q.-S..) (学者:杨庆生)

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摘要:

Using the numerical simulation technique, the authors study the effect of the specimen size on the stress distribution and fracture properties of the interface between the fiber and matrix for the fiber pull-out test. The effects of the embedded length of the fiber in the matrix and the wrapped thickness of the matrix around the fiber are considered. On the assumption of the perfect interface of fiber and matrix, the numerical analysis for the interfacial shear stress and normal stress of the test specimen with different dimensions is performed. For the whole process of interfacial crack growth, the energy release rate is calculated. All materials are assumed to be linearly elastic solid. It is shown that the size of the test specimen affects dramatically the distribution of stresses and the fracture properties of the interface.

关键词:

Composite materials; Energy release rate; Interface; Numerical simulation; Stress distributions

作者机构:

  • [ 1 ] [Peng, X.-R.]Dept. of Civil Eng., Northern Jiaotong Univ., Beijing 100044, China
  • [ 2 ] [Yang, Q.-S.]Dept. of Mech., Beijing Polytech. Univ., Beijing 100022, China

通讯作者信息:

  • [Peng, X.-R.]Dept. of Civil Eng., Northern Jiaotong Univ., Beijing 100044, China

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来源 :

Acta Materiae Compositae Sinica

ISSN: 1000-3851

年份: 2002

期: 5

卷: 19

页码: 84-89

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