以超高分子量聚乙烯(UHMWPE)UD布为原料,采用模压成型工艺制备UHMWPE波纹结构复合材料。研究不同工艺下复合材料的界面强度、结合载荷-位移曲线及试样的损伤模式,分析不同铺层方式对试样压缩和冲击性能的影响。结果表明,UHMWPE波纹板吸能的主要方式是整体结构屈曲变形,[0°/90°]铺层数量的增多能够提高波纹板的整体承载能力,通过波纹板内部加入[45°/-45°]铺层可增加波纹板的吸能能力。
Ultrahigh molecular weight polyethylene (UHMWPE) UD cloth was used as raw material,UHMWPE corrugated structure composite material was prepared by compression molding process.The interface strength of the material under different processes was studied,combined with the load-displacement curve and the damage mode of the sample.The influence of different layup methods on the compression and impact properties of the sample was analyzed.The results shown that the main energy absorption method of UHMWPE corrugated board was the buckling deformation of the overall structure.The increase in the number of layers of [0°/90°] can increase the overall load-bearing capacity of the corrugated board.[45°/-45°] Laying can increase the energy absorption capacity of the corrugated board.
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基金资助
国家重点研发计划(2018YFC0810306);中央高校基本科研业务费专项资金(JUSRP52007A)
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