A New Unit Cell Concerned Realistic Geometry Structure of 3D Four Directional Braided Composite


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This paper represented a new unit cell of 3D four directional braided composite for mechanical properties calculation. There are three disadvantages of unit cells in most previous works such as the fiber volume fraction hard to touch the reality despite the packing factor is maximum 1, the yarns are curved subjectively which is far away from realistic geometry structure, a quantity of connected surfaces are neglected as the yarns are not match the real appearance. A new unit cell established based on the real manufacturing process and structure could improve these aspects in this work. The yarn in the unit cell was similar to the real one which was constructed by photos. The details at the conjoined position were also expressed thoroughly. The result of finite element simulation was in good agreement with the available experimental data.



Edited by:

J.J. Delaunay, J.H. Zhou and L. Lu






H. J. Zhang and C. W. Zhou, "A New Unit Cell Concerned Realistic Geometry Structure of 3D Four Directional Braided Composite", Materials Science Forum, Vol. 860, pp. 65-68, 2016

Online since:

July 2016




* - Corresponding Author

[1] J. Dong, M. Feng, Asymptotic expansion homogenization for simulating progressive damage of 3D braided composites, Compos. Struct. 92 (2010) 873-882.

DOI: 10.1016/j.compstruct.2009.09.026

[2] L. Chen, X.M. Tao, C.L. Choy, On the microstructure of three-dimensional braided preforms, Compos. Sci. Technol. 59 (1999) 391-404.

[3] M. M. Shokrieh, M. S. Mazloomi, A new analytical model for calculation of stiffness of three-dimensional four-directional braided composites, Compos. Struct. 94 (2012) 1005-1015.

DOI: 10.1016/j.compstruct.2011.09.010

[4] G. W. Du, F. K. Ko, Unit cell geometry of 3-D braided structures, J. Reinf. Plast. Compos. 12(1993) 752-768.

[5] R. Pandey, H.T. Hahn, Visualization of representative volume elements for three-dimensional four-step braided composites, Compos. Sci. Technol. 56 (1996) 161-170.

DOI: 10.1016/0266-3538(95)00137-9

[6] X. Sun, C. Sun, Mechanical properties of three-dimensional braided composites, Compos. Struct. 65 (2004) 485-492.

[7] D. S. Li, Z. X. Lu, C. Li, J. L. Li, Microstructure and mechanical properties of three-dimensional five-directional braided composites, Int. J. Solids Struct. 46 (2009) 3422-3432.

DOI: 10.1016/j.ijsolstr.2009.05.013

[8] L. D. Zhou, Z. Zhuang, Strength analysis of three-dimensional braided T-shaped composite structures, Compos. Struct. 104 (2013) 162-168.

DOI: 10.1016/j.compstruct.2013.04.023

[9] Y. M. Cai, H. Y. Sun, Thermo-viscoelastic analysis of three-dimensionally braided composites, Compos. Struct. 98 (2013) 47-52.

DOI: 10.1016/j.compstruct.2012.11.012

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