摘要
树脂基复合材料导热困难,聚热严重,所以端面摩擦热对其使用性能起到关键作用。文中根据聚醚醚酮(PEEK)复合材料在持续旋转双环摩擦运动作用下端面摩擦热产生的特点,运用有限元方法建立二维轴对称模型,研究复合材料的实时温度场分布,分析端面摩擦热对复合材料摩擦学性能的影响。最后,选取纯PEEK来验证模拟方法的可行性。研究结果表明:模拟得到的最高温度值和实测值误差小于2%,有限元方法可以比较准确地预测树脂基复合材料在连续的摩擦过程中任意时刻任意位置的温度值,可为树脂基复合材料的摩擦学应用及设计提供参考。
The friction heat play a key role in the performance of composite materials in which heat conduction is so low that heat build-up is serious during sliding process. Based on the friction heat characteristics of polyetheretherketone （PEEK） under the conU.nuous ring rotating friction movement, the finite element method is used to establish a two-dimensional axisymmetric model, studying the real-time temperature distribution, and analyzing the effect of surface friction heat on the tribological properties of the composite materials. Finally, pure PEEK was selectd to verify the feasibility of the simulation method. The results show that the maximum simulated temperature is less 2 % than the measured one. The finite element method can predict accurately the temperature anytime and anywhere in the friction process, which provides reference for the tribological application and designing of resin matrix composite.
出处
《高分子材料科学与工程》
EI
CAS
CSCD
北大核心
2013年第3期182-185,190,共5页
Polymer Materials Science & Engineering
基金
国家自然科学基金资助项目(50903010
51175066)
国家博士后基金(20110490114)
省学术骨干教师(gg1203)
省新世纪优秀人才(1251-NCET-007)资助项目
关键词
聚醚醚酮
复合材料
端面摩擦热
有限元
温度场
polyetheretherketone
composites
surface frictional heat
finite element
temperature field
