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Published on: April 27, 2019
Effects of Temperature on Bending Properties of Three-Dimensional and Five-Directional Braided Composite
Peng Li1, Na Jia2,3, Xiaoyuan Pei4,5
1School of Textiles Science and Engineering, TianGong University, Tianjin 300387, China. pengli@tjpu.edu.cn.
Abstract:
The bending properties of three-dimensional (3Dim) and five-directional (5Dir) braided/epoxy resin composites at room temperature, 90 °C, 110 °C, and 150 °C and heating for 0.25 h, 10 h, and 30 h, respectively, were studied. The effect of different temperatures and heating times on the bending property of these composites was discussed. The results showed that the bending strength of these composites at 90 °C, 110 °C, and 150 °C and heating time of 0.25 h is 33.86%, 46.27%, and 83.94% lower, respectively, than that at room temperature. In addition, 3Dim-5Dir braided composites exhibit different damage modes at different temperatures, revealing different failure mechanisms. Heating temperature has greater influence on the bending properties of these composites than heating time. The results provided a basis for the application of resin-based 3Dim-5Dir braided/epoxy resin composites at different temperatures.
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