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随着碳纤维环氧树脂复合材料大量应用于飞机结构件,恶劣的海洋环境对材料老化促进作用远远超过预期。为较为便捷地研究分析这一现象,本文采用典型环境因子(温度、湿度和紫外辐照)循环作用方法开展了CCF300复合材料试验室加速老化试验和静力学试验,分析研究不同角度单向铺层拉拉试件的抗老化性能和力学性能变化规律。结果表明:0°铺设角单层板老化现象最为明显,90°次之,45°单层板抗老化能力最强;但老化作用对0°铺设角单层板抗拉强度影响甚微,90°单层板强度下降则最为严重。
With the extensive use of carbon fiber epoxy composites in aircraft structures, the deteriorating marine environment has far exceeded the expectations for material aging. In order to analyze and analyze this phenomenon more conveniently, the accelerated aging test and static test of CCF300 composite material laboratory were carried out by the cyclic action of typical environmental factors (temperature, humidity and ultraviolet radiation). The unidirectional ply Anti-aging performance and mechanical properties of the tensile test specimens. The results show that: 0 ° laying angle of the most obvious single-layer veneer aging, 90 ° second, 45 ° single-layer anti-aging ability of the strongest; but the aging effect 0 ° paved angle monolayer tensile strength little, 90 ° Single-layer board strength is the most serious decline.