Yang Jie, Xie Hai-feng, Song Xin, Liu Mei, Zhang Fei-min
School of Stomatology, Nanjing Medical University. Nanjing 210029,China. E-mail:
School of Stomatology, Nanjing Medical University. Nanjing 210029,China.
Shanghai Kou Qiang Yi Xue. 2016 Feb;25(1):1-5.
To investigate the effect of glass fiber volume content on the flexural property of fiber-reinforced composite． METHODS： The specimens of composite were fabricated with 4 different glass fiber volume contents by changing roving winded number of strands dipped in resin matrix, and the mechanical properties were tested by 3-point flexural test in order to determine the optimal fiber volume content. The data was analyzed statistically with SPSS20.0 software package.
Self-made fiber-reinforced composites with the glass fiber volume content percentage of 60.4% achieved the maximal flexural strength and the maximal elastic modulus.
As the glass fiber content in matrix of composite material is increased in certain range, the flexural strength and the elastic modulus can be improved，then reaches the peak. However, the flexural property decreases rather than rises when the fiber content is more than 60.4%.
研究玻璃纤维体积含量对纤维增强复合材料弯曲性能的影响。方法：通过改变浸渍树脂基体的粗纱缠绕股数，制备了4种不同玻璃纤维体积含量的复合材料试样，并通过三点弯曲试验测试其力学性能，以确定最佳纤维体积含量。使用SPSS20.0软件包对数据进行统计分析。
玻璃纤维体积含量百分比为60.4%的自制纤维增强复合材料达到了最大弯曲强度和最大弹性模量。
随着复合材料基体中玻璃纤维含量在一定范围内增加，弯曲强度和弹性模量会提高，然后达到峰值。然而，当纤维含量超过60.4%时，弯曲性能会下降而非上升。
