| 刘旭,雷园玲,陈跃良,霍武军.湿热环境对CCF300复合材料层合板的载荷放大系数影响[J].装备环境工程,2015,12(4):95-99,128. LIU Xu,LEI Yuan-ling,CHEN Yue-liang,HUO Wu-jun.Effect of Hydrothermal Environment on Load Enhancement Factor of CCF300 Composite Laminates[J].Equipment Environmental Engineering,2015,12(4):95-99,128. |
| 湿热环境对CCF300复合材料层合板的载荷放大系数影响 |
| Effect of Hydrothermal Environment on Load Enhancement Factor of CCF300 Composite Laminates |
| 投稿时间：2015-04-05 修订日期：2015-08-15 |
| DOI：10.7643/issn.1672-9242.2015.04.018 |
| 中文关键词: 耐久性 复合材料层合板 联合威布尔分布 载荷放大系数 湿热环境 |
| 英文关键词:durability composite laminates joint Weibull distribution load enhancement factor hydrothermal environment |
| 基金项目:国家自然科学基金 （51375490） |
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| 中文摘要: |
| 目的 研究湿热环境对CCF300复合材料层合板载荷放大系数的影响。方法 以铺层方式为［45°/0°/-45°/90°/0°2/45°/0°-45°/0° ］ 2s的CCF300/5228A复合材料层合板为研究对象，对其进行恒定环境与常幅疲劳载荷的非共同作用实验， 采用改进的联合威布尔分布分析复合材料的疲劳寿命分散性， 并运用MATLAB软件编写程序， 分别计算得到其部件的载荷放大系数。结果在研究范围内， 随着试验环境中温湿度的增加， 复合材料的形状参数单调递减， 而载荷放大系数单调递增。结论 载荷放大效果并不明显， 不能很好地加速该复合材料层合板的疲劳寿命试验， 说明湿热环境导致复合材料力学性能下降， 但反映到载荷放大系数的影响不大。 |
| 英文摘要: |
| Objective To study the effect of hydrothermal environment on load enhancement factor of CCF300 composite laminates. Methods The study focused on the CCF300/5228A composite laminates with the stacking sequence of［45°/0°/-45°/90°/0° 2/45°/0°-45°/0° ］ 2s. The non-coupling experiment of constant environment and constant-amplitude fatigue loading was conducted, the dispersion of the fatigue life of the composite material was analyzed by modified joint Weibull distribution, and the MATLAB software was used to develop a program to calculate the load enhancement factor of the part. Results The results showed that the shape parameter of composite materials had monotone decrease when the humiture increased, accordingly the load enhancement factor also increased. Conclusion It showed that under hydrothermal environment, the load enhancement effect was not sufficient to accelerate fatigue of the composite laminates in the fatigue life test, indicating that the mechanical properties decreased, however, the load enhancement factor had no obvious change. |
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