拉挤成型复合材料棍件的吸收性能研究

发布时间：2018-03-06 19:14

本文选题：纺织材料　切入点：纤维增强复合材料　出处：《中国科技论文》2017年10期 　论文类型：期刊论文

【摘要】：由于在实际生产中棍状结构比管状、圆台状结构更易于生产,为研究2种纤维增强材料棍件的能量吸收性能,选择了拉挤成型方式制成复合材料棍件(包括碳纤维增强复合材料棍件和玻璃纤维增强复合材料棍件)。其中,玻璃纤维增强复合材料棍件的制作方式采用在拉挤成型的棍件外层进行编织,然后对整体进行二次固化的混合成型技术以增强玻璃纤维纺织复合材料吸能性。运用实验研究法,利用万能实验机对试样进行准静态压缩实验并制成观察实验片,将准静态压缩实验后得到的数据计算比能量吸收值,通过光学显微镜绘制观察图和模式图分析其破坏机理。一方面探究了外层编织角大小(27°、33°、46°)对玻璃纤维增强复合材料棍件的影响,另一方面对比了相同尺寸的碳纤维增强复合材料棍件和外层编织加固的玻璃纤维增强复合材料棍件的能量吸收性能。研究表明:编织角为27°的棍件能量吸收性能最好(比能量吸收值为54.5J/g),碳纤维增强复合材料棍件(比能量吸收值为131.4J/g)吸能性优于玻璃纤维增强复合材料棍件。
[Abstract]:In order to study the energy absorption properties of two kinds of fiber reinforced materials, the rod structure is easier to be produced than the tubular structure in practical production. The pullout molding method is selected to make composite rod (including carbon fiber reinforced composite rod and glass fiber reinforced composite rod). In order to enhance the energy absorption of glass fiber textile composites, the glass fiber reinforced composite rod is made by braiding the outer layer of the extruded rod, and then the secondary solidification of the whole is carried out to enhance the energy absorption of the glass fiber textile composite. The quasi-static compression experiment of the sample was carried out by using a universal experimental machine and the observation experiment was made. The data obtained from the quasi-static compression experiment was calculated as the specific energy absorption value. On the one hand, the influence of the outer braiding angle (27 掳/ 33 掳/ 46 掳) on glass fiber reinforced composite rod was studied. On the other hand, the energy absorption properties of carbon fiber reinforced composite rod with the same size and glass fiber reinforced composite rod reinforced with outer braiding are compared. The results show that the energy absorption property of the bar with a braiding angle of 27 掳is compared. The best (specific energy absorption value is 54.5 J / g), carbon fiber reinforced composite rod (specific energy absorption value is 131.4 J / g) is superior to glass fiber reinforced composite rod.
【作者单位】：东华大学纺织学院;纺织面料技术教育部重点实验室;
【基金】：国家自然科学基金资助项目(51302036) 高等学校博士学科点专项科研基金资助项目(20130075120006)
【分类号】：TB332

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