Abstract
The longitude tensile properties of 3-Dimension-4-directional(3D-4d) braided C/SiC composites(CMCs) were investigated with the help of a double scale model. This model involves micro-scale and unit-cell scale. In micro-scale, the tensile properties of fiber tows which involves matrix cracking, interfacial debonding, and fiber failure are studied. The unit-cell scale model can reflect the braided structure and simulate the tensile properties of 3D-4d CMCs by introducing the tensile properties of fiber tows into it. Quasi-static tensile tests of 3D-4d braided CMCs were performed on a PWS-100 test system. The predicted tensile stress-strain curve by the double scale model is in good agreement with that of the experimental results.
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Funded by the National Basic Research Program of China, the National Natural Science Foundation of China (51675266), the Aeronautical Science Foundation of China (2014ZB52024), the Fundamental Research Funds for the Central Universities (NJ20160038), the Jiangsu Innovation Program for Graduate Education(CXLX13_165) and the Fundamental Research Funds for the Central Universities
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Niu, X., Sun, Z., Song, Y. et al. Tensile properties of 3-Dimension-4-directional braided Cf/SiC composite based on double-scale model. J. Wuhan Univ. Technol.-Mat. Sci. Edit. 32, 1271–1279 (2017). https://doi.org/10.1007/s11595-017-1741-4
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DOI: https://doi.org/10.1007/s11595-017-1741-4