树脂基纺织复合材料疲劳性能表征与分析方法研究现状

为更好了解纺织复合材料疲劳性能的损伤机制及影响因素。综述了织物结构差异、环境因素、疲劳实验过程中的自热对复合材料疲劳性能的影响,以及近年来复合材料疲劳强度模型的研究近况;对比分析了不同织物结构复合材料的疲劳性能研究近况及损伤情况,以及结构的差异对材料的疲劳寿命及损伤影响;探讨了水、高温、化学介质、紫外线辐射等环境因素对材料损伤机制和疲劳性能的影响,并对试样产生自热而导致复合材料疲劳性能过早失效进行分析;最后总结了复合材料疲劳性能仍然存在的问题,并对其在未来的发展方向进行了展望。

Research status of fatigue properties characterization and analysis methods of resin matrix composites

In order to better understand the fatigue performance of textile composites research,this paper reviews the influence of fabric structure,environmental factors,self-heat during fatigue experiment on the fatigue of composite materials,and the recent research on fatigue strength model of composite materials are scrutinized.Firstly,the fatigue properties and damage of composites reinforced by different fabric structures are compared and analyzed,revealing that the fatigue and damage of composites are affected by the reinforcing structures.Environmental factors,such as water,temperature,chemical medium and ultraviolet radiation,have different damage mechanisms on textile composite materials,but they all make the composite fatigue life shorter.The spontaneous heat generated by the sample during the experiment also leads to premature failure of the composite.The problems in composite fatigue are summarized,and the development directions of composites in the future are proposed.