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为研究环境因素对CFRP孔板疲劳性能的影响,针对T300/QY8911含中心孔层压板设计并开展了正交试验研究.试验中采用标准试件在给定环境条件下测试其拉伸疲劳寿命,并通过对正交试验结果的方差分析研究了有无涂层、紫外辐射、环境湿度等环境因素及其交互作用对T300/Y8911复合材料孔板拉伸疲劳寿命影响的显著性.研究表明:在紫外、涂层、湿度及任意二者的交互作用中,有无涂层对复合材料孔板的拉伸疲劳寿命影响高度显著,有无紫外及涂层与湿度的交互作用对复合材料孔板拉伸疲劳寿命影响显著;而湿度、紫外与涂层的交互作用及紫外与湿度的交互作用对复合材料孔板拉伸疲劳寿命的影响均不显著.
In order to study the influence of environmental factors on the fatigue properties of CFRP orifice plates, orthogonal design was carried out for the T300 / QY8911 center-hole laminate.The tensile fatigue life was tested under the given environmental conditions using standard specimens, Through the analysis of variance of orthogonal test results, the influence of environmental factors such as coating, UV radiation, environmental humidity and their interaction on the tensile fatigue life of T300 / Y8911 composite plate was studied. The results show that in the UV, coating, humidity and the interaction between any of them, whether the coating on the tensile fatigue life of the composite orifice plate highly significant, with or without UV and coating and humidity interaction on the composite plate pull Tensile fatigue life has a significant impact. However, the interaction between humidity, UV and coating and the interaction between UV and humidity have no significant effect on the tensile fatigue life of the composite material.