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二维编织结构复合材料中编织物增强体的纤维相互缠结,显示出较强的整体性,使它的拉伸强度、抗冲击性、损伤容限等性能都优于传统的层合复合材料。玻璃纤维拉伸强度高,编织后纱线损伤率低。将编织的二维管压成双层的平面织物,再利用手糊法将织物和环氧树脂复合制备成复合材料试样,并测试试样的基本结构参数。结果表明,试样的纤维体积含量偏低。利用万能试验机测试试样的拉伸性能,分析力学性能的影响因素和破坏机理。结果表明,影响因素有编织角、纤维体积含量等,其中编织角是主要影响因素。
Two-dimensional braided structure composite material braid reinforcements entangled with each other, showing a strong integrity of its tensile strength, impact resistance, damage tolerance and other properties are superior to the traditional laminated composite materials . High tensile strength of glass fiber, yarn weaving damage rate is low. The weaved two-dimensional tube is pressed into a double-layer flat fabric, and then the fabric and the epoxy resin are prepared by the hand-lay method into the composite material sample, and the basic structural parameters of the sample are tested. The results show that the fiber content of the sample is low. Tensile properties of specimens were tested by universal testing machine, and the influencing factors and failure mechanism of mechanical properties were analyzed. The results show that the influencing factors include braid angle, fiber volume content, etc. Braid angle is the main influencing factor.