宇航材料工艺2024，Vol.54Issue(6)：136-142,7.DOI:10.12044/j.issn.1007-2330.2024.06.019
湿热环境对铝蜂窝夹层复合材料性能的影响
Effect of Humid and Hot Environment on Properties of Aluminum Honeycomb Sandwich Composites
郑国栋 1郭子民 2李桂洋 2李伟明 2肖瑛3
作者信息
- 1. 航天长征睿特科技有限公司,天津 300475
- 2. 航天长征睿特科技有限公司,天津 300475||航天材料及工艺研究所,北京 100076
- 3. 航天材料及工艺研究所,北京 100076
- 折叠
摘要
Abstract
Due to the high ambient temperature and humidity associated with a specific type of fairing,the product performance may be adversely affected if the fairing is stored for an extended period.In order to verify the influence of hot and humid environment on the properties of aluminum honeycomb sandwich structure composites,the samples were subjected to conditions of 80℃ and 85％relative humidity,and the relationship between storage time and moisture absorption was investigated,along with the effects of the hot and humid environment on the properties of flatwise tension strength,double compression shear and edgewise compressive strength.The test results show that the water absorption reaches equilibrium when the storage time reaches 8 days,the double compression shear strength remains relativel unchanged,and the flatwise tension strength decreases by 11.08％.Additionally,the edgewise compressive strength and edgewise compressive modulus decreas by 11.04％and 13.94％respectively.An analysis of the damage morphology reveals that after the water absorption reached equilibrium,the Al/Mg ratio on the surface of aluminum honeycomb increases from 42.11％to 48.79％,and the honeycomb appearance did not change significantly.At this time,the failure morphology of the flatwise tensile specimen transitions from aluminum honeycomb failure to aluminum honeycomb and aluminum honeycomb/panel interface mixed failure mode.关键词
蜂窝/夹层结构/吸湿/力学性能Key words
Aluminum honeycomb/Sandwich structure/Moisture absorption/Mechanical properties分类
通用工业技术引用本文复制引用
郑国栋,郭子民,李桂洋,李伟明,肖瑛..湿热环境对铝蜂窝夹层复合材料性能的影响[J].宇航材料工艺,2024,54(6):136-142,7.
