Abstract
A new parameterized finite element model, called the Full-cell model, has been established based on the practical microstructure of 2.5D angle-interlock woven composites. This model considering the surface layer structure can predict the mechanical properties and estimate the structural performance such as the fiber volume fraction and inclination angle. According to introducing a set of periodic boundary condition, a reasonable overall stress field and periodic deformation are obtained. Furthermore, the model investigates the relationships among the woven parameters and elastic moduli, and shows the structural variation along with the corresponding woven parameters. Comparing the results calculated by FEM with the experiments, the veracity of calculation and reasonability based on the Full-cell model are confirmed. In the meantime, the predicted results based on the Full-cell model are more closed to the test results compared to those based on the Inner-cell model.
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The work was supported by Jiangsu Innovation Program for Graduate Education [grant number KYLX_0237].
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Song, J., Wen, W., Cui, H. et al. Finite Element Analysis of 2.5D Woven Composites, Part I: Microstructure and 3D Finite Element Model. Appl Compos Mater 23, 29–44 (2016). https://doi.org/10.1007/s10443-015-9447-2
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DOI: https://doi.org/10.1007/s10443-015-9447-2