Structural Analysis of 3-D Braided Preforms for Composites Part I: The Four-step Preforms

Li, W.; Hammad, M.; El-Shiekh, Aly

doi:10.1080/00405009008658725

Cited by 70 publications

(25 citation statements)

References 6 publications

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“…One of the advantages is that the angle of fibers within the braid can be controlled. Although braids are most suitable and commonly used as circular fabrics, other structures can as well be produced (40)(41)(42)(43)(44)(45)(46)(47)(48)(49). The 3-D braids feature a comparatively high level of fiber content (up to 68%) and at the same time less than 1 % entrapped air.…”

Section: Three-dimensional Textilesmentioning

confidence: 99%

Nonwovens as Three-Dimensional Textiles for Composites

Bhat

1995

Materials and Manufacturing Processes

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Section: Three-dimensional Textilesmentioning

confidence: 99%

Nonwovens as Three-Dimensional Textiles for Composites

Bhat

1995

Materials and Manufacturing Processes

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“…(Ko, 1982;Li et al, 1990). Recently, 3D five-directional braided composites have been developed by adding the uniaxial reinforced yarns along braiding direction based on the 3D four-directional braiding process.…”

Section: Introductionmentioning

confidence: 98%

Microstructure and mechanical properties of three-dimensional five-directional braided composites

Chen

et al. 2009

International Journal of Solids and Structures

102

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a b s t r a c tThree-dimensional (3D) five-directional braided composites are significant structural materials in the fields of astronauts and aeronautics. On the basis of the 3D five-directional braiding process, three types of microstructural unit cell models are established with respect to the interior, surface and corner regions. The mathematical relationships among the structural parameters, such as fiber orientation, fiber volume fraction, the yarn packing factor, are derived. By using these three unit cell models, a micromechanical prediction procedure is described to simulate the stiffness and strength properties of 3D fivedirectional braided composites. Only the in situ constituent fiber and matrix properties of the composites and the fiber volume proportion are required in the simulation. The stress states generated in the constituent fiber and matrix materials are explicitly correlated with the overall applied load on the composites. The predictive stiffness and strength are in good agreement with available experimental data, which demonstrates the applicability of the present analytical model.

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“…For three dimensional braided composites, many works are focused on the micro-structure [3][4][5][6] and the elastic properties [7][8][9][10][11][12][13]. A few theoretical methods have been developed to predict the elastic constants.…”

Section: Introductionmentioning

confidence: 99%