摘要
分析了不同温度对组成 Dyneem a纤维增强复合材料的超高分子量聚乙烯纤维丝束拉伸强度的影响。并对 U D75防弹复合材料在不同成型压力下的弹道吸能进行了研究。在对成型压力影响的研究中 ,对 U D75复合材料的层间结合力、厚度和体密度进行了分析。结果表明 ,温度超过 12 3℃后拉伸强度有大幅的下降 ,而成型压力为12 .5 MPa时达到最大值。
The influence of temperature on the tensile strength of the ultra-high molecular weight polyethylene (UHMWPE) fiber strands which reinforce the UD75 composites is analyzed. The variation of ballistic absorption energy as well as the adhesive bonding force between layers, the thickness and density of laminates of UD75 composites with molding pressure are studied. The results show that the tensile strength of the UHMWPE fiber strands is greatly decreased when the temperature is higher than 123°C, and the ballistic absorption energy is up to the maximum value when the molding pressure is about 12.5 MPa. The study results would be valuable for the proper preparation and optimum design of composite armors.
出处
《复合材料学报》
EI
CAS
CSCD
北大核心
2001年第2期46-49,共4页
Acta Materiae Compositae Sinica
